Month: February 2008

Macaulay 2, version 1.1 announcement

We’ve posted a conference announcement for a Macaulay2 workshop in June. Participation is by application/invitation, and the deadline is very soon, so check it out.
In other Macaulay2 news, we received the following from Dan Grayson:

Dear Colleague,
Macaulay 2 is a computer program devoted to supporting research in algebraic geometry and commutative algebra. We’ve been working hard on the latest release of Macaulay 2, and now version 1.1 is ready for download from our website. We hope you will try it out. You can download it here.
Installation is easy. Versions have been compiled specifically for the following GNU/Linux systems: generic Linux, Ubuntu (32 bit and 64 bit), Debian (32 bit and 64 bit) both with *.deb files, Fedora 7, Fedora 8, and Red Hat Enterprise 4, with *.rpm files; for the following Macintosh OS X systems: 10.4 and 10.5 on Intel 32 bit, 10.5 on Intel 64 bit, and 10.4 on the Power PC; and on Microsoft Windows with the Cygwin compatibility package installed. Automatic installation and updating from our repositories is possible for Debian, Ubuntu, and Microsoft Windows with Cygwin.
Documentation has been improved, with every function documented. Browse the latest version at our web site.
It is easy to write, document, and distribute Macaulay 2 code. Packages have been contributed and included with Macaulay 2, including: NoetherNormalization, by Bart Snapp and Nathaniel Stapleton; GenericInitialIdeal and Regularity, by Alexandra Seceleanu and Nathaniel Stapleton; InvolutiveBases, by Daniel Robertz; ChainComplexExtras, by Frank Moore and Gregory G. Smith; HyperplaneArrangements, by Graham Denham and Gregory G. Smith; LexIdeals, by Chris Francisco; ReesAlgebra, by David Eisenbud, Amelia Taylor, and Sorin Popescu; and TangentCone, by Craig Huneke and David Eisenbud.
Packages can be posted on our web site for instant downloading and installation. Frequent updating by the author is possible. See here for more information.
We’re hoping to help even more people get started with writing packages for Macaulay 2. Those interested should contact us and consider applying by March 1 for our workshop at the end of June.
An interface with TeXmacs has been provided, so Macaulay 2 can be run with a good graphical user interface with beautiful formatting of Macaulay 2 output.
A good implementation of real and complex numbers to arbitrary precision, based on the mpfr library from mpfr.org, has been implemented. The library is remarkable for the care taken to return correctly rounded results. It is hoped that this addition will form a good base for experimentation with algebraic algorithms that mix symbolic and numeric techniques. Basic transcendental functions are provided. An interface to lapack routines for singular value decomposition and eigenvectors is provided.
A more complete list of improvements and bug fixes is available on the website.
Let us know whether you have any problems getting started, and we’ll do our best to help you.
Dan Grayson
Mike Stillman

UCLA 2008: Workshop in Celebration of Mark Green's 60th Birthday

Workshop in Celebration of Mark Green’s 60th Birthday: Hodge Theory and Algebraic Geometry
February 22 – 23, 2008
UCLA Department of Mathematics
This workshop will focus on recent work by a number of distinguished researchers in Hodge theory and algebraic geometry. It is also an opportunity to recognize Mark Green’s contributions to Mathematics.
Dr. Green obtained his PhD from Princeton, where his thesis adviser was Phillip Griffiths. After teaching at Berkeley and MIT, he came to UCLA as an Assistant Professor in 1975. Dr. Green’s research has taken him into several areas of mathematics–several complex variables, differential geometry, commutative algebra, Hodge theory and algebraic geometry. He received an Alfred P. Sloan fellowship and was an invited speaker at the International Congress of Mathematicians in Berlin. Along with Eitan Tadmor, he was one of IPAM’s Founding Co-Directors. He has been Director of IPAM since 2002 and is responsible for its remarkable success.
Organizing Committee

  • David Gieseker , Chair (UCLA, Mathematics)
  • David Eisenbud (University of California, Berkeley (UC Berkeley))
  • Phillip Griffiths (Institute for Advanced Study)
  • Stan Osher (University of California, Los Angeles (UCLA), Mathematics)

Speakers

  • James Carlson (Clay Mathematics Institute)
  • Herb Clemens (Ohio State University)
  • Ron Donagi (University of Pennsylvania)
  • David Eisenbud (University of California, Berkeley (UC Berkeley))
  • Phillip Griffiths (Institute for Advanced Study)
  • Peter Jones (Yale University)
  • Robert Lazarsfeld (University of Michigan)
  • Stefan Muller-Stach (Johannes Gutenberg-Universität Mainz)
  • Madhav Nori (University of Chicago)
  • Stan Osher (University of California, Los Angeles (UCLA))
  • Chris Peters (Université de Grenoble I (Joseph Fourier))
  • Christoph Thiele (University of California, Los Angeles (UCLA))

More information and a registration form is available online at http://www.ipam.ucla.edu/programs/ht2008/. Please register in advance. There is no registration fee for the workshop. There will be an optional dinner held on Friday night in honor of Mark Green; a fee will be charged to those who attend.
For further information, send an email to ht2008@ipam.ucla.edu.

Sevilla 2008, in memory of Pilar Pisón-Casares

The Departamento de Algebra of the Universidad de Sevilla, will host a Conference on Commutative, Combinatorial, and Computational Algebra in Memory of Pilar Pisón-Casares. The conference will run February 11-16, 2008.
Invited speakers include:

  • Klaus Altmann
  • Mats Boij
  • Ana Bravo
  • Winfried Bruns
  • Antonio Campillo
  • Marta Casanellas
  • Marc Chardin
  • Alicia Dickenstein
  • David Eisenbud
  • Elisa Gorla
  • Gert-Martin Greuel
  • Sabir Gusein-Zade
  • Juergen Herzog
  • Takayuki Hibi
  • Ilia Itenberg
  • Diane Maclagan
  • Thomas Markwig
  • Juan C. Migliore
  • Ezra Miller
  • Ignacio Ojeda
  • Aron Simis
  • Bernd Sturmfels
  • Bernard Teissier
  • Santiago Zarzuela

For more information, including the Scientific and Organizing Committees, as well as information on registration, accommodation, and the program, please see the conference web site.
Participants who have registered by December 10, 2007, will have the opportunity to present their mathematical work in the form of a poster. Please see the conference web site for more details.