BEGIN:VCALENDAR VERSION:2.0 PRODID:-//commalg.org - ECPv6.15.20//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:commalg.org X-ORIGINAL-URL:https://www.commalg.org X-WR-CALDESC:Events for commalg.org REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20190310T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20191103T060000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20200308T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20201101T060000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20210314T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20211107T060000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:UTC BEGIN:STANDARD TZOFFSETFROM:+0000 TZOFFSETTO:+0000 TZNAME:UTC DTSTART:20190101T000000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;VALUE=DATE:20200912 DTEND;VALUE=DATE:20200914 DTSTAMP:20260421T083109 CREATED:20200220T154957Z LAST-MODIFIED:20200220T154957Z UID:9155-1599868800-1600041599@www.commalg.org SUMMARY:AMS Sectional\, University of Texas at El Paso DESCRIPTION:The AMS Fall Western Sectional Meeting will be held at the University of Texas at El Paso\, El Paso\, TX\, Sept 12-13\, 2020 (Saturday – Sunday). There will be a\nSpecial Session on Free Resolutions\, Combinatorics\, and Geometry which might be of interest. \nOrganizers: \n\nAnton Dochtermann\, Texas State University\nSean Sather-Wagstaff\, Clemson University URL:https://www.commalg.org/event/ams-sectional-university-of-texas-at-el-paso/ END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20200902T150000 DTEND;TZID=America/New_York:20200902T170000 DTSTAMP:20260421T083109 CREATED:20200829T143148Z LAST-MODIFIED:20200829T143148Z UID:9753-1599058800-1599066000@www.commalg.org SUMMARY:Commutative and Homological Algebra Market Presentations (CHAMP) seminar DESCRIPTION:The Commutative and Homological Algebra Market Presentations (CHAMP) seminar is a weekly virtual seminar series aimed at showcasing the research of graduate students and young researchers who are searching for academic positions. There will be 50-minute talks on zoom every Wednesday at 3 pm eastern time\, starting on September 2\, followed by 10 minutes of questions and a 30-minute tea room. If you would like to attend\, please register here. Talks will be recorded and posted on the CHAMP website. Speakers will also record 3 to 5 minute elevator pitches — short videos introducing their work and research interests — which will also be posted on the website.\n\nGraduate students and early researchers on the market this fall who would like an invitation to speak are encouraged to fill out this form. You can also contact the organizers\, Eloísa Grifo and Sean Sather-Wagstaff\, with any suggestions. \nFor more information\, please see the seminar website. URL:https://www.commalg.org/event/commutative-and-homological-algebra-market-presentations-champ-seminar/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200901 DTEND;VALUE=DATE:20200902 DTSTAMP:20260421T083109 CREATED:20200806T193619Z LAST-MODIFIED:20200806T194835Z UID:9711-1598918400-1599004799@www.commalg.org SUMMARY:One Day Workshop on Commutative Algebra and Related Fields\, Constanta\, Romania DESCRIPTION:There will be a One Day Workshop on Commutative Algebra and Related Fields on 1 September 2020 in Constanta\, Romania. \nThe event will take place online\, via Webex/Cisco platform. If you would like to attend\, please contact one of the organizers Viviana Ene (vivian@univ-ovidius.ro) or Dumitru Stamate (dumitru.stamate@fmi.unibuc.ro). \nInvited speakers: \n\nAlexandru Constantinescu (Berlin\, Germany)\nRodica Dinu (Bucharest\, Romania)\nJürgen Herzog (Essen\, Germany)\nAnda Olteanu (Constanta\, Romania)\nAyesha Asloob Qureshi (Istanbul\, Turkey)\nGiancarlo Rinaldo (Trento\, Italy)\nNaoki Terai (Okayama\, Japan)\n\nThe schedule is available at:\nhttps://sites.google.com/view/vivianaene/home/one-day-workshop-on-commutative-algebra-and-related-fields URL:https://www.commalg.org/event/one-day-workshop-on-commutative-algebra-and-related-fields-constant-romania/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200810 DTEND;VALUE=DATE:20200815 DTSTAMP:20260421T083109 CREATED:20200110T143913Z LAST-MODIFIED:20200217T081900Z UID:8654-1597017600-1597449599@www.commalg.org SUMMARY:Local cohomology and related topics (Summer School)\, Stockholm DESCRIPTION:We are pleased to announce a masterclass “Local cohomology and related topics” in Stockholm\, August 10-14 2020. Our goal is to give an introduction for graduate students to the current research. Two sets of lectures will be given by Josep Alvarez-Montaner and Wenliang Zhang.\nRegistration is open until April 30. For more details\, visit the summer school website:\n https://sites.google.com/view/smc2020\nOrganizers: \n\nAlessandro De Stefani\nDavid Rydh\nBoris Shapiro\nIlya Smirnov URL:https://www.commalg.org/event/local-cohomology-and-related-topics-summer-school-stockholm/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200803 DTEND;VALUE=DATE:20200808 DTSTAMP:20260421T083109 CREATED:20200103T150243Z LAST-MODIFIED:20200217T082209Z UID:8704-1596412800-1596844799@www.commalg.org SUMMARY:Free Resolutions and Representation Theory\, ICERM DESCRIPTION:There will be a workshop Aug 3-7\, 2020 at ICERM on: Free Resolutions and Representation Theory.\nAbstract\nThe structure of free resolutions plays an important role in analyzing singularities of varieties of low codimension. Codimension 2 Cohen-Macaulay varieties (resp. codimension 3 Gorenstein varieties) come from rank conditions on an n x (n+1) matrix (resp. a skew-symmetric (2n+1) x (2n+1) matrix).\nThis workshop seeks to push such results to Cohen-Macaulay varieties of codimension 3 and Gorenstein varieties of codimension 4.\nThis problem turns out to be related to the classification of semi-simple Lie algebras. These new methods allow one to create a ‘map’ of free resolutions of a given format. The calculations that arise are very demanding and require new computational methods involving both commutative algebra and representation theory.\nOrganizers \n\nLars Christensen\, Texas Tech University\nClaudia Miller\, Syracuse University\nSteven Sam\, University of California\, San Diego\nJerzy Weyman\, University of Connecticut\n\nSupport\nICERM welcomes applications from faculty\, postdocs\, graduate students\, industry scientists\, and other researchers who wish to participate. Some funding may be available for travel and lodging. Graduate students who apply must have their advisor submit a statement of support in order to be considered.\nFor more information\, see the web site:\nhttps://icerm.brown.edu/topical_workshops/tw-20-frrt/ URL:https://www.commalg.org/event/free-resolutions-and-representation-theory-icerm/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200727 DTEND;VALUE=DATE:20200801 DTSTAMP:20260421T083109 CREATED:20200127T192338Z LAST-MODIFIED:20200217T082253Z UID:8948-1595808000-1596239999@www.commalg.org SUMMARY:WARTHOG 2020 DESCRIPTION:The 2020 WARTHOG workshop will be on the topic of “Infinite-dimensional methods in commutative algebra”.\nIt will be held July 27-31\, 2020 at the University of Oregon\, and will be led by Andrew Snowden. More information can be found here:\nhttps://pages.uoregon.edu/belias/WARTHOG/infcomm/index.html\nWARTHOG is a summer graduate school which is focused on a single topic. The goal is to get deep and reach a new and exciting result\, while meeting a lot of broadly applicable math along the way… but starting from the basics. We get there with a strong emphasis on exercises.\nThe workshop is intended for graduate students at all levels and in all fields who have an interest in algebra (and have completed their graduate algebra sequence). Postdocs are also welcome to apply. URL:https://www.commalg.org/event/warthog-2020/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200627 DTEND;VALUE=DATE:20200629 DTSTAMP:20260421T083109 CREATED:20200526T175938Z LAST-MODIFIED:20200526T180013Z UID:9545-1593216000-1593388799@www.commalg.org SUMMARY:eCARs DESCRIPTION:The first eCARs (Early Commutative Algebra Researchers) online conference will take place on June 27-28 on Zoom. \nThe aim of this conference is to foster connections among the current upcoming crowd of researchers in commutative algebra and to provide an opportunity for graduate students and postdocs on the academic job market to share their research with the community. \nThe conference will feature seminar talks by early career professors\, postdocs\, and graduate students\, an interactive graduate student poster session\, and social events. Registration is open to anyone in the community but event times will be based on United States time zones. \nAlthough the conference is especially targeted to early career researchers\, all are welcome to attend. We especially encourage registrants to attend the poster sessions and help with our mission of fostering connections with graduate student researchers. \nRegistration and applications for poster presentations are now open. Poster applicants must apply by June 5. \nMore information about the conference\, as well as links to register or to apply to present a poster are available on the conference webpage: \nhttps://web.math.princeton.edu/~takumim/eCARs/ \nOrganizers:\nAlessandra Costantini (University of California\, Riverside)\nKyle Maddox (University of Missouri-Columbia and University of Kansas)\nTakumi Murayama (Princeton University) URL:https://www.commalg.org/event/ecars/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200625 DTEND;VALUE=DATE:20200626 DTSTAMP:20260421T083109 CREATED:20200608T145426Z LAST-MODIFIED:20200608T145426Z UID:9578-1593043200-1593129599@www.commalg.org SUMMARY:Qolloquium: Quivers\, Representations\, Resolutions DESCRIPTION:On June 25 2020 there will be a one-day online conference\, “Qolloquium: Quivers\, Representations\, Resolutions”\, which will bring together geometers and representation theorists working on various aspects of quiver varieties and symplectic resolutions. Through both established and emerging research\, these topics enjoy multiple points of contact with investigations into birational geometry\, universal enveloping algebras\, hyperplane arrangements\, character varieties\, Higgs bundle moduli spaces and the Hitchin system\, hyperpolygon spaces\, and the geometric Langlands program. \nLocation: Online (Zoom) \nWeb Site: https://math.usask.ca/~rayan/Qolloquium/ \nRegistration: https://ubc.ca1.qualtrics.com/jfe/form/SV_0lyqYl14bod6k97 URL:https://www.commalg.org/event/qolloquium-quivers-representations-resolutions/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200608 DTEND;VALUE=DATE:20200613 DTSTAMP:20260421T083109 CREATED:20200217T181918Z LAST-MODIFIED:20200405T164631Z UID:9135-1591574400-1592006399@www.commalg.org SUMMARY:28th National School on Algebra\, Bucharest DESCRIPTION:update 5 April 20: This event has been cancelled. \nThe National School on Algebra\, the 28th edition\, will take place in Bucharest\, 8-12th of June\, right after the conference\, part of the same event and thus having the same title “Homological trends in Commutative Algebra and Algebraic Geometry”. \nThe website for the school is math.univ-ovidius.ro/sna/edition.aspx?cat=GeneralInfo&itemID=15 . \nThere will be 5 mini-courses\, three one-hour lectures each\, delivered by Alexandru Constantinescu (Freie Universität Berlin\, Germany)\, Florian Enescu (Georgia State University\, USA)\, Gavril Farkas (Humboldt-Universität zu Berlin\, Germany)\, Claudiu Raicu (Notre Dame University\, USA)\, Jerzy Weyman (Jagiellonian University\, Poland). \nHere are the mini-abstracts of each of the 5 mini-courses: \nAlexandru Constantinescu: The deformation theory of an affine singularity is governed by the so-called versal deformation. This is an object through which all other deformations factor. In the setting of affine toric geometry\, this whole process can be translated in the language of semigroups. Our first aim will be to construct abstractly a universal (flat) extension of a pair of semigroups. We will then see how this universal extension explicitly looks like for semigroups arising from affine toric singularities\, and how it relates to Minkowski decompositions of polyhedra. Finally\, we will connect these universal objects to the graded components of the versal deformation of a toric singularity. \nFlorian Enescu: Homological methods in positive characteristic commutative algebra. In the past several decades\, there has been a flurry of developments in commutative algebra and algebraic geometry in positive characteristic related to the Frobenius homomorphism. New theories such as tight closure theory and Hilbert-Kunz theory have brought numerous advances and applications. A significant part of these ideas rely on homological methods\, in connection to local cohomology and injective hulls of local rings\, and they currently represent an exciting area of research in commutative algebra. \nGavril Farkas: TBA \nClaudiu Raicu: TBA \nJerzy Weyman: TBA URL:https://www.commalg.org/event/28th-national-school-on-algebra-bucharest/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200601 DTEND;VALUE=DATE:20200613 DTSTAMP:20260421T083109 CREATED:20200101T212934Z LAST-MODIFIED:20200217T082429Z UID:8588-1590969600-1592006399@www.commalg.org SUMMARY:PASCA 2020\, Barranquilla Colombia DESCRIPTION:PASCA 2020 (Pan-American School in Commutative Algebra) will be a two-week summer school on commutative algebra at Universidad del Norte in Barranquilla\, Colombia\, June 1-12 2020.\nThe lecturers of the school will be \n\nJosé Luis González (UC Riverside)\nLuis Nuñez-Betancourt (CIMAT)\nClaudia Polini (Notre Dame)\nKaren Smith (Michigan)\n\nFor more information\, including an application form\, see the webpage for the summer school. URL:https://www.commalg.org/event/pasca-2020-barranquilla-colombia/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200601 DTEND;VALUE=DATE:20200606 DTSTAMP:20260421T083109 CREATED:20200101T201959Z LAST-MODIFIED:20200217T181623Z UID:8781-1590969600-1591401599@www.commalg.org SUMMARY:Homological trends\, Bucharest DESCRIPTION:The conference “Homological trends in Commutative Algebra and Algebraic Geometry” will take place in Bucharest\, June 1st-5th\, 2020.\nOrganizers: \n\nCristodor Ionescu (IMAR\, Romania)\nMarius Vladoiu(Bucharest Univ. & Purdue Univ.).\n\nupdated 30 December 2019\nWeb page: http://www.imar.ro/~imar/2019/site_conferinta_2020/index.html\nList of speakers: \n\nJosep Alvarez-Montaner\nMarian Aprodu\nNero Budur\nChristine Berkesch\nGiulio Caviglia\nMarc Chardin\nAldo Conca\nAlexandru Dimca\nFlorian Enescu\nGavril Farkas\nMihai Fulger\nHuy Tai Ha\nJurgen Herzog\nLinquan Ma\nRosa Miro-Roig\nSatoshi Murai\nAndras Nemethi\nClaudia Polini\nDorin Popescu\nClaudiu Raicu\nGregory Smith\nBernd Ulrich\nUli Walther\nJerzy Weyman URL:https://www.commalg.org/event/homological-trends-bucharest/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200525 DTEND;VALUE=DATE:20200530 DTSTAMP:20260421T083109 CREATED:20200125T134110Z LAST-MODIFIED:20200217T082557Z UID:8694-1590364800-1590796799@www.commalg.org SUMMARY:Tropical Geometry\, Valladolid (Spain) DESCRIPTION:International school on Tropical Geometry\nhttp://tropicalschool2020.uva.es/\nThis school is organized by the IMUVA-Mathematics Research Institute of the University of Valladolid (Spain) in May\, 25th-29th\, 2020. The main objective of is to offer to future and young researchers of distinct branches of mathematics a series of courses at doctorate level on a new field connected to many areas. There will be an introductory course with minimal prerequisites and two courses on recent applications in different areas. The three courses are aimed to be as self-contained as possible in order to make the school attractive to a wide and diverse audience.\nThe target audience is master’s students\, PhD students and postdocs from all areas of mathematics. Senior researchers interested in learning on this new topic are also welcome. The school is based on three courses organized in an exercise-based format (1 hour of lecture + 40 minutes of exercises for each session). We will also give the opportunity to young researchers to present their own work either through a series of short communications or a poster session.\nThe speakers\, TAs and topics of the three courses are:\n– Introduction to tropical geometry\nLecturer: Diane Maclagan (University of Warwick\, UK)\nTAs: Sara Lamboglia (Johann Wolfgang Goethe-Universität\, Germany) and Marta Panizzut (TU Berlin\, Germany)\n– Introduction to tropical ideals\nLecturer: Felipe Rincón (Queen Mary University of London\, UK)\nTAs: Sara Lamboglia and Marta Panizzut\n– Tropical approach to singular points and its connections to Nagata’s conjecture and linear codes\nLecturer/TA: Nikita Kalinin (National Research University Higher School of Economics in St. Petersburg and University of St. Petersburg\, Russia)\nThere will be grants covering accommodation for some of the young participants (master and PhD students\, postdocs). The number of grants will depend on the financial support that we get\, we will try to give as many grants as we can. Candidates will be selected under the supervision of the School’s Scientific Committee and young women will be given priority. Registration and application for a grant will be available soon.\nImportant dates:\n– Submission deadline and grant application: 13th of March\, 2020.\n– Notification of acceptance on contributions and grants: 22th of March\, 2020.\n– Early registration until: 31th of March\, 2020.\nFor more details please visit the School webpage:\nhttp://tropicalschool2020.uva.es/\nOrganizers: Philippe Gimenez and Diego Ruano (IMUVA\, Valladolid). URL:https://www.commalg.org/event/tropical-geometry-valladolid-spain/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200518 DTEND;VALUE=DATE:20200523 DTSTAMP:20260421T083109 CREATED:20200118T190738Z LAST-MODIFIED:20200217T082651Z UID:8723-1589760000-1590191999@www.commalg.org SUMMARY:Purity\, Approximation Theory and Spectra\, Cetraro\, Italy DESCRIPTION:There will be a workshop on “Purity\, Approximation Theory and Spectra” at Grand Hotel San Michele in Cetraro\, Italy\, 18-22 May 2020.\nPurity and approximation theory influence a wide range of areas in mathematics including model theory of modules\, silting and tilting theory\, cotorsion pairs and abelian model structures and many more. Moreover\, related classification problems in abelian and triangulated categories are strongly connected with spaces such as Ziegler spectra and prime spectra. We aim to bring together experts and young researchers with an interest in these topics to share their different viewpoints and approaches.\nThe workshop will include five mini lecture series introducing a range of fundamental topics\, and contributed talks. There will also be opportunities for PhD students to present short talks introducing their research topics. Funding is available for a limited number of PhD students.\nLecture series speakers: \n\nSergio Estrada\, University of Murcia\nLorna Gregory\, University of Campania\nIvo Herzog\, Ohio State University\nHenning Krause\, University of Bielefeld\nJan Saroch\, Charles University\, Prague\n\nMore information is available on http://profs.scienze.univr.it/laking/Cetraro/html5up-strata/index.html\nOrganisers:\nLidia Angeleri Hügel\, Rosanna Laking\, Francesca Mantese\, Tsutomu Nakamura (University of Verona) URL:https://www.commalg.org/event/purity-approximation-theory-and-spectra-cetraro-italy/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200515 DTEND;VALUE=DATE:20200518 DTSTAMP:20260421T083109 CREATED:20200115T144055Z LAST-MODIFIED:20200217T082737Z UID:8639-1589500800-1589759999@www.commalg.org SUMMARY:Unexpected and Asymptotic Properties of Algebraic Varieties (BrianFest) DESCRIPTION:There will be a conference “Unexpected and Asymptotic Properties of Algebraic Varieties.” (aka BrianFest) which will focus on interpolation problems in algebraic geometry and asymptotic invariants of homogeneous ideals. The conference will also celebrate Brian Harbourne’s work in this area as he celebrates his 65th birthday.\nThe conference will take place May 15-17\, 2020 at the University of Nebraska-Lincoln. The following people have already agreed to speak at the conference: \n\nCristiano Bocci (University of Siena)\nEloísa Grifo (University of California Riverside)\nJuan Migliore (University of Notre Dame)\nUwe Nagel (University of Kentucky)\nTomasz Szemberg (Pedagogical Institute of Cracow)\n\nMore information can be found at the web page for the conference.\nA second announcement with more details will appear in the new year. URL:https://www.commalg.org/event/unexpected-and-asymptotic-properties-of-algebraic-varieties-brianfest/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200511 DTEND;VALUE=DATE:20200516 DTSTAMP:20260421T083109 CREATED:20200111T193247Z LAST-MODIFIED:20200217T082821Z UID:8819-1589155200-1589587199@www.commalg.org SUMMARY:Macaulay2 workshop\, Cleveland State University DESCRIPTION:Dear Colleagues\,\nWe are organizing a Macaulay2 workshop at Cleveland State University in Cleveland\, OH from Monday\, May 11\, 2020 through Friday\, May 15\, 2020 (with Sunday\, May 10 and Saturday\, May 16 serving as travel dates).\nThe purpose of the workshop is to bring Macaulay2 developers together with those who would like to share or develop their skills at writing packages for Macaulay2 and those interested in developing the corresponding mathematical algorithms. We welcome participants with a broad range of experience with Macaulay2\, from novices to the very experienced. Participants will form groups and work together on writing code and packages for Macaulay2. In addition to the group work\, we plan to provide tutorials on Macaulay2 and package development\, as well as opportunities for mathematical discussions and professional development.\nFor more information\, please visit the workshop website at https://math.galetto.org/m2csu2020\, which also includes information about lodging and possible projects.\nAttendance at this workshop is by invitation\, based on a brief application available via the link above. All who are interested are encouraged to apply. We have applied for NSF funding and hope to provide support for travel and lodging (priority will go to graduate students\, postdocs\, and participants from underrepresented communities). If you wish to apply for this kind of support\, we ask that you submit your application by February 15\, 2020.\nIf you have any questions\, please do not hesitate to contact us (email addresses below).\nBest regards\,\nFederico Galetto (f.galetto@csuohio.edu)\nCourtney Gibbons (crgibbon@hamilton.edu)\nHiram López (h.lopezvaldez@csuohio.edu)\nBranden Stone (bstone@hamilton.edu) URL:https://www.commalg.org/event/macaulay2-workshop-cleveland-state-university/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200502 DTEND;VALUE=DATE:20200504 DTSTAMP:20260421T083109 CREATED:20200417T134143Z LAST-MODIFIED:20200417T134143Z UID:9385-1588377600-1588550399@www.commalg.org SUMMARY:Zoom Special Session on DG Methods in Commutative Algebra and Representation Theory (AMS Fresno replacement) DESCRIPTION:This Zoom special session\, in lieu of a physical meeting in Fresno\, will serve as an opportunity for researchers in commutative algebra and representation theory to share their DG ideas with one another. You can find more information on the conference website: https://www.math.utah.edu/~briggs/dgsession \nThe meeting is open to the public\, but will only be accessible to those with a Zoom account who have registered. If you are interested in attending the conference you must register using the following link: https://utah.zoom.us/meeting/register/tJApcuihrDosHtJBh7k-VLeIOK9XNHAWvfgn \nOrganizers:\nBenjamin Briggs\, University of Utah briggs@math.utah.edu\nJanina Letz\, University of Utah letz@math.utah.edu\nJosh Pollitz\, University of Utah pollitz@math.utah.edu URL:https://www.commalg.org/event/zoom-special-session-on-dg-methods-in-commutative-algebra-and-representation-theory-ams-fresno-replacement/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200502 DTEND;VALUE=DATE:20200504 DTSTAMP:20260421T083109 CREATED:20200102T190141Z LAST-MODIFIED:20200317T143450Z UID:8533-1588377600-1588550399@www.commalg.org SUMMARY:AMS Sectional\, California State University\, Fresno DESCRIPTION:Update 17 March 2020: This event has been cancelled. \nThe AMS Spring Western Sectional Meeting will be held at California State University\, Fresno\, Fresno\, CA\, May 2-3\, 2020 (Saturday – Sunday). The following special sessions might be of interest.\nSpecial Session on DG Methods in Commutative Algebra and Representation Theory\nConfirmed Speakers: \n\nJames Cameron (University of California Los Angeles)\nLars Christensen (Texas Tech University)\nRachel Diethorn (Syracuse University)\nPinches Dirnfeld (University of Utah)\nLuigi Ferraro (Wake Forest University)\nHugh Geller (Clemson University)\nMohsen Gheibi (University of Texas Arlington)\nDave Jorgensen (University of Texas Arlington)\nHaydee Lindo (Williams College)\nClaudia Miller (Syracuse University)\nJohn Myers (SUNY Oswego)\nSaeed Nasseh (Georgia Southern University)\nCris Negron (University of North Carolina)\nNicholas Packauskas (SUNY Cortland)\nJulia Pevtsova (University of Washington)\nHamid Rahmati (University of Nebraska)\nPablo Sanchez Ocal (Texas A&M University)\nSean Sather-Wagstaff (Clemson University)\nLiana Sega (University of Missouri)\nJanet Striuli (Fairfield University)\nMark Walker (University of Nebraska)\n\nOrganizers:\nBenjamin Briggs\, University of Utah\nJanina Letz\, University of Utah\nJosh Pollitz\, University of Utah pollitz@math.utah.edu URL:https://www.commalg.org/event/ams-sectional-california-state-university-fresno/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200425 DTEND;VALUE=DATE:20200427 DTSTAMP:20260421T083109 CREATED:20200410T135717Z LAST-MODIFIED:20200410T142351Z UID:9354-1587772800-1587945599@www.commalg.org SUMMARY:CAZoom DESCRIPTION:Sean Sather-Wagstaff and Juliette Bruce are holding a virtual online conference bringing together people in commutative algebra and related fields. The conference is being held via the video conferencing service Zoom on April 25 – 26\, 2020. \nSpeakers: Christine Berkesch\, Adam Boocher\, Jenny Kenkel\, Monica Lewis\, Jenna Rajchgot\, Rebecca RG\, Kevin Tucker\, and Keller VandeBogert. \nFor more info\, including how to register see the conference webpage. URL:https://www.commalg.org/event/cazoom/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200425 DTEND;VALUE=DATE:20200427 DTSTAMP:20260421T083109 CREATED:20200217T084622Z LAST-MODIFIED:20200317T142105Z UID:9123-1587772800-1587945599@www.commalg.org SUMMARY:Morgantown Algebra Days 2020\, West Virginia University  DESCRIPTION:Update 17 March 2020: This event has been cancelled. \nThere will be a two-day commutative algebra conference which will take place at West Virginia University in Morgantown\, WV during April 25-26\, 2020 (Saturday-Sunday).  The conference will have 8 research talks and a  poster session for graduate students. The poster session will allow numerous young researchers to present their work to the commutative algebra community. \nThe registration form is on the meeting website  (www.math.wvu.edu/mad2020).  Please register by April 1 to secure your lodging in Morgantown during the conference. Graduate students can submit poster titles and abstracts during registration to be considered for the poster session on Saturday\, April 25. A limited amount of funds is available to support the travel of graduate students and early career researchers who has no support from their institutions. \nConfirmed Speakers \n\nBrian Harbourne\, University of Nebraska-Lincoln\, U.S.\nJürgen Herzog\, University of Duisburg-Essen\, Germany\nHaydee Lindo\, Williams College\, U.S.\nLinquan Ma\, Purdue University\, U.S.\nTakumi Murayama\, Princeton University\, U.S.\nRebecca R.G.\, George Mason University\, U.S.\nLiana Şega\, University of Missouri-Kansas City\, U.S.\nEmily Witt\, University of Kansas\, U.S.\n\nOrganizers: \n\nEla Celikbas (West Virginia University)\nOlgur Celikbas (West Virginia University)\nSean Sather-Wagstaff (Clemson University)\n\nThis conference is sponsored by National Science Foundation\, Department of Mathematics at West Virginia University\, and Eberly College of Arts and Sciences at West Virginia University. URL:https://www.commalg.org/event/morgantown-algebra-days-2020-west-virginia-university/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200425 DTEND;VALUE=DATE:20200427 DTSTAMP:20260421T083109 CREATED:20200125T164058Z LAST-MODIFIED:20200217T083015Z UID:8812-1587772800-1587945599@www.commalg.org SUMMARY:URiCA-KUMUNUjr 2020 DESCRIPTION:The ninth annual URiCA(pronounced like eureka)-KUMUNUjr conference will be on April 25-26\, 2020\, at the University of Nebraska-Lincoln. Inspired by the success of the KUMUNU commutative algebra conferences (KU\, MU\, NU) KUMUNUjr brought together graduate students and postdocs studying commutative algebra in the midwest\, a term that now stretches from Utah to Michigan and North Dakata to Texas\, to share their research and expertise while building lasting collaborations and friendships. Upcoming Researchers in Commutative Algebra\, URiCA\, is the next page of KUMUNUjr. We want to continue our mission to promote interaction among junior researchers\, graduate students and postdocs\, while branching outside our initial triad. The funding for this conference is pending. If you would like more information please visit the conference webiste:\nhttp://www.math.unl.edu/~shong3/URICA20/ URL:https://www.commalg.org/event/urica-kumunujr-2020/ END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20200421T080000 DTEND;TZID=America/New_York:20200421T170000 DTSTAMP:20260421T083109 CREATED:20200421T132358Z LAST-MODIFIED:20200421T132358Z UID:9407-1587456000-1587488400@www.commalg.org SUMMARY:Fellowship of the Ring: Stillman\, "Quadratic Gorenstein rings and the Koszul property" DESCRIPTION:This will be a weekly Commutative Algebra webinar\, hosted by MSRI\, that will take place at 1:30pm Pacific time every Thursday. The organizing committee is listed below. Each talk will have two parts: the first part should be accessible to graduate students after a first course in commutative algebra\, and should survey the basic facts and the goals of some area of commutative algebra; the second part will typically cover recent research. \nThe second Seminar in the series: \nDate/Time: Thursday\, April 23\, 1:30-3pm Pacific time \nSpeaker: Mike Stillman\, Cornell University \nTitle: Quadratic Gorenstein rings and the Koszul property \nAbstract: (joint work with Matt Mastroeni and Hal Schenck) \nA graded ring R = S/I is Gorenstein (S = polynomial ring\, I = homogeneous ideal) if the length of its free resolution over S is its codimension in S\, and the top betti number is one. R is called Koszul if the free resolution of k = R/(maximal homogeneous ideal) over R is linear. Any Koszul algebra is defined by quadratic relations\, but the converse is false\, and no one knows a finitely computable criterion. Both types of rings have duality properties\, and occur in many situations in algebraic geometry and commutative algebra\, and in many cases\, a Gorenstein quadratic algebra coming from geometry is often Koszul (e.g. homogeneous coordinate rings of most canonical curves). \nIn 2001\, Conca\, Rossi\, and Valla asked the question: must a (graded) quadratic Gorenstein algebra of regularity 3 be Koszul? \nIn the first 45 minutes\, we will define these notions\, and give examples of quadratic Gorenstein algebras and Koszul algebras. We will give methods for their construction\, e.g. via inverse systems. After a short break\, we will use these techniques to answer negatively the above question\, as well as see how to construct many otherexamples of quadratic Gorenstein algebras which are not Koszul. \nZoom link: https://msri.zoom.us/webinar/register/WN_RZUNkiShRQS4PVtZa8P9jw \nHow to join: The goal of the seminar is to reach as wide as possible a group of students and faculty interested in commutative algebra\, but some protection is necessary to avoid annoying interference on Zoom. Therefore\, to be on the mailing list of the seminar and receive login information for each webinar\, one must be a member\, vetted by one of the organizers. Students and faculty are invited to send an email requesting membership *from a university account* to any one of the organizers. \nOrganizing Committee: \n\nDavid Eisenbud \, chair\nMel Hochster \nCraig Huneke \nSrikanth Iyengar \nClaudia Miller \nIrena Peeva \nSteven Sam \nKarl E Schwede \nBernd Ulrich URL:https://www.commalg.org/event/fellowship-of-the-ring-stillman-quadratic-gorenstein-rings-and-the-koszul-property/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200418 DTEND;VALUE=DATE:20200420 DTSTAMP:20260421T083109 CREATED:20200118T210734Z LAST-MODIFIED:20200217T083100Z UID:9058-1587168000-1587340799@www.commalg.org SUMMARY:CA+\, Ames Iowa DESCRIPTION:The next iteration of CA+ (short for Commutative Algebra Plus) will take place in Ames\, IA on the campus of Iowa State University from Saturday\, April 18\, 2020 to Sunday\, April 19\, 2020. Conference participants are encouraged to visit the webpage:\nhttp://www-users.math.umn.edu/~cberkesc/CA/CA2020.html\nThe registration page will be available soon. There is some travel funding\, especially for grad students\, postdocs\, and early career faculty. The deadline to register is February 15\, 2020.\nConference Organizers: \n\nChristine Berkesch (Minnesota)\nDaniel Erman (Wisconsin)\nJason McCullough (ISU) URL:https://www.commalg.org/event/ca-ames-iowa/ END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20200416T163000 DTEND;TZID=America/New_York:20200416T190000 DTSTAMP:20260421T083109 CREATED:20200415T151225Z LAST-MODIFIED:20200415T151225Z UID:9370-1587054600-1587063600@www.commalg.org SUMMARY:Fellowship of the Ring: Singh\, "Hankel determinantal rings" DESCRIPTION:This will be a weekly Commutative Algebra webinar\, hosted by MSRI\, that will take place at 1:30pm Pacific time every Thursday. The organizing committee is listed below. Each talk will have two parts: the first part should be accessible to graduate students after a first course in commutative algebra\, and should survey the basic facts and the goals of some area of commutative algebra; the second part will typically cover recent research. \nThe second Seminar in the series: \nDate/Time: Thursday\, April 16\, 1:30-3pm Pacific time \nSpeaker: Anurag Singh\, University of Utah \nTitle: Hankel determinantal rings \nAbstract: We will discuss various aspects of rings defined by minors\nof Hankel matrices of indeterminates\, and sketch a proof that these\nhave rational singularities. This is joint work with Aldo Conca\,\nMaral Mostafazadehfard\, and Matteo Varbaro. \nZoom link: https://msri.zoom.us/webinar/register/WN_jV5f3TCyQx-ha85zcZtBLA \nHow to join: The goal of the seminar is to reach as wide as possible a group of students and faculty interested in commutative algebra\, but some protection is necessary to avoid annoying interference on Zoom. Therefore\, to be on the mailing list of the seminar and receive login information for each webinar\, one must be a member\, vetted by one of the organizers. Students and faculty are invited to send an email requesting membership *from a university account* to any one of the organizers. \nOrganizing Committee: \n\nDavid Eisenbud \, chair\nMel Hochster \nCraig Huneke \nSrikanth Iyengar \nClaudia Miller \nIrena Peeva \nSteven Sam \nKarl E Schwede \nBernd Ulrich URL:https://www.commalg.org/event/fellowship-of-the-ring-singh-hankel-determinantal-rings/ END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20200409T163000 DTEND;TZID=America/New_York:20200409T180000 DTSTAMP:20260421T083110 CREATED:20200409T134403Z LAST-MODIFIED:20200409T134403Z UID:9352-1586449800-1586455200@www.commalg.org SUMMARY:Fellowship of the Ring: A National Commutative Algebra Seminar DESCRIPTION:This will be a weekly Commutative Algebra webinar\, hosted by MSRI\, that will take place at 1:30pm Pacific time every Thursday. The organizing committee is listed below. Each talk will have two parts: the first part should be accessible to graduate students after a first course in commutative algebra\, and should survey the basic facts and the goals of some area of commutative algebra; the second part will typically cover recent research. \nThe first Seminar in the series: \nDate/Time: Thursday\, April 9\, 1:30-3pm Pacific time \nSpeaker: Linquan Ma\, Purdue University \nTitle: Multiplicities over local rings\, Lech’s conjecture\, and lim Ulrich sequence \nAbstract: We discuss the theory of Hilbert–Samuel multiplicities: their connections with integral closure\, Koszul homology\, and singularities. We then focus on a long standing conjecture of Lech which states that the multiplicities do not drop under faithfully flat extensions of local rings R–>S. We survey the literature of this conjecture and various attempts to attack it. Finally\, we discuss some very recent work that proves Lech’s conjecture when R is standard graded\, using lim Ulrich sequence and weakly lim Ulrich sequence that we introduce. Roughly speaking\, these are sequences of finitely generated modules that are not necessarily Cohen–Macaulay\, but asymptotically behave like Ulrich modules. We show their existence imply Lech’s conjecture\, and we construct weakly lim Ulrich sequence for standard graded rings of positive characteristic. \nHow to join: The goal of the seminar is to reach as wide as possible a group of students and faculty interested in commutative algebra\, but some protection is necessary to avoid annoying interference on Zoom. Therefore\, to be on the mailing list of the seminar and receive login information for each webinar\, one must be a member\, vetted by one of the organizers. Students and faculty are invited to send an email requesting membership *from a university account* to any one of the organizers. \nOrganizing Committee: \n\nDavid Eisenbud \, chair\nMel Hochster \nCraig Huneke \nSrikanth Iyengar \nClaudia Miller \nIrena Peeva \nSteven Sam \nKarl E Schwede \nBernd Ulrich URL:https://www.commalg.org/event/fellowship-of-the-ring-a-national-commutative-algebra-seminar/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200321 DTEND;VALUE=DATE:20200323 DTSTAMP:20260421T083110 CREATED:20200321T133733Z LAST-MODIFIED:20200321T133852Z UID:9305-1584748800-1584921599@www.commalg.org SUMMARY:Zoom Special Session in Commutative Algebra DESCRIPTION:This session was organized by Eloísa Grifo and Sean Sather-Wagstaff to be held at the AMS Charlottesville Sectional Meeting\, from March 13 to March 15th\, 2020. Since the AMS had to cancel the meeting due to CORONAVIRUS concerns\, they decided to hold a virtual session on March 21 and 22\, on zoom. \nYou can see a list of presenters at https://eloisagrifo.github.io/cvillezoom.html. \nTo watch live: \n\nSaturday session (1:00 – 4:50pm EDT)\nSunday session (1:00 – 4:50pm EDT) URL:https://www.commalg.org/event/zoom-special-session-in-commutative-algebra/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20200307 DTEND;VALUE=DATE:20200309 DTSTAMP:20260421T083110 CREATED:20200107T195138Z LAST-MODIFIED:20200217T083141Z UID:8632-1583539200-1583711999@www.commalg.org SUMMARY:SLAM 2020\, Tulane DESCRIPTION:The Southwest Local Algebra Meeting (SLAM) will be held at Tulane University\, 7–8 March 2020. More information can be found on their website:\nhttp://www.math.ttu.edu/~lchriste/slam2020.html URL:https://www.commalg.org/event/slam-2020-tulane/ END:VEVENT END:VCALENDAR