CVS commit: wip/gfan

["Kamel Derouiche" <jihbed%users.sourceforge.net@localhost>]

Module name:    wip
Committed by:   jihbed
Date:           Mon May  3 14:57:41 UTC 2010

Import into wip/gfan

Log Message:
Import gfan-0.4 as wip/gfan.

Gfan is a software package for computing Groebner fans and tropical varieties. 
These are polyhedral fans associated to polynomial 
ideals. The maximal cones of a Groebner fan are in bijection with the marked 
reduced Groebner bases of its defining ideal. The 
software computes all marked reduced Groebner bases of an ideal. Their union is 
a universal Groebner basis. The tropical variety of 
a polynomial ideal is a certain subcomplex of the Groebner fan. Gfan contains 
algorithms for computing this complex for general 
ideals and specialized algorithms for tropical curves, tropical hypersurfaces 
and tropical varieties of prime ideals. In addition to the 
above core functions the package contains many tools which are useful in the 
study of Groebner bases, initial ideals and tropical 
geometry. Among these are an interactive traversal program for Groebner fans 
and programs for graphical renderings.

For ordinary Groebner basis computations Gfan is not competitive in speed 
compared to programs such as CoCoA, Singular and 
Macaulay2. 

Status:

Vendor Tag:     JIHBED
Release Tags:   JIHBED_20100503
                
N wip/gfan/distinfo
N wip/gfan/Makefile
N wip/gfan/PLIST
N wip/gfan/DESCR

No conflicts created by this import


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