## current news: Jan-Erik Roos, 1935-2017 January 11th, 2018 (no responses)

We are deeply sad to tell the community that Jan-Erik Roos passed away December 15, 2017.

His colleagues in Stockholm sent the following:

Jan-Erik Roos studies in Paris resulted in a substantial work on Noetherian categories. Since 1970 he held a professorship in Stockholm. One of his greatest achievements was to bring together two fields of mathematics, algebraic topology and commutative algebra. He noted that there were analogous results in these fields, and a fruitful cooperation began as a result. He had many research students taking part in this work. Jan-Erik was successful in using computers to solve problems and finding counterexamples. He was very active to the very last.

### upcoming conferences

- January 26th, 2018: Combinatorial Algebra meets Algebraic Combinatorics, McMaster University
- February 19th, 2018: Rings and Factorizations, Graz, 2018
- February 23rd, 2018: Georgia Algebraic Geometry Symposium
- February 24th, 2018: SLAM 2018
- March 12th, 2018: The Homological Conjectures: Resolved! (MSRI)
- March 17th, 2018: Spring AMS Sectional, Ohio State
- March 19th, 2018: Singularities, Toric Geometry, and DiffEq: Chemnitz
- March 22nd, 2018: Graduate Student Meeting on Applied Algebra and Combinatorics, Osnabrück
- March 23rd, 2018: Algebraic geometry and its broader implications: a celebration of Robin Hartshorne’s 80th and the book’s 40th birthday, Chicago
- April 7th, 2018: Applied Algebraic Geometry, Georgia Tech
- April 14th, 2018: Southeastern Spring AMS Section Meeting, Nashville
- April 14th, 2018: Macaulay2 Workshop, Wisconsin
- April 21st, 2018: AMS Sectional, Northeastern University
- April 28th, 2018: KUMUNUjr, 2018 (Dates Changed)
- May 6th, 2018: RTG mini-course, Salt Lake City
- May 28th, 2018: Stable Cohomology @ Snowbird
- June 4th, 2018: Macaulay2 Workshop, Leipzig
- June 4th, 2018: CBMS “Applications of Polynomial Systems” at TCU
- June 11th, 2018: Graduate Summer School in Algebraic Group Actions, McMaster University
- June 18th, 2018: Combinatorial Algebraic Geometry Retrospective Workshop, Fields Institute
- July 2nd, 2018: ICART 2018, Rabat, Morocco
- August 27th, 2018: Combinatorial structures in algebra and geometry, Constanta, Romania
- November 8th, 2018: Commutative Algebra and Representation Theory, Tulane University
- May 28th, 2019: Thematic Program in Commutative Algebra and its Interaction with Algebraic Geometry, Notre Dame

### recent conferences

- January 10th, 2018: San Diego JMM 2018
- January 8th, 2018: ICADM-2018, Maduri, India
- November 30th, 2017: Workshop on Algebraic Methods in Statistics, Osnabrück
- October 26th, 2017: Workshop on commutative algebra devoted to Peter Schenzel, Osnabrück
- October 26th, 2017: Structures on Free Resolutions, Lubbock, TX
- October 21st, 2017: KUMUNU 2017, Kansas
- October 14th, 2017: Route 81 2017
- October 12th, 2017: Scientific day in honor of Marco Fontana, Rome
- September 23rd, 2017: AMS Sectional, Orlando
- September 22nd, 2017: CA+, Minnesota