Dear Members of the GAP Forum,
It is a pleasure to announce the new GAP package
`toric'
by David Joyner.
In the authors words: "toric is a package that implements some computations
related to toric varieties and combinatorial geometry in GAP. With toric,
affine
toric varieties can be created and related information about them can be
calculated."
The affine toric varieties are constructed from cones and there are several
commands dealing with cones and related objects. There are also commands
which compute topological invariants, e.g., Euler characteristics of certain
non-afffine toric varieties constructed from collections of cones.
toric can be obtained from one of the the web pages
http://cadigweb.ew.usna.edu/%7Ewdj/gap/toric/
or
http://www.gap-system.org/Packages/toric.html
Questions concerning the package or its installation should be
addressed to David Joyner ([EMAIL PROTECTED]).
Gerhard Hiss
October 11, 2005
--
Gerhard Hiss, Lehrstuhl D fuer Mathematik, RWTH Aachen, 52056 Aachen
Tel.: (+49) (0) 241 / 80-94543
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