gfan_substitute
program for computing with Groebner fans
Install
- All systems
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curl cmd.cat/gfan_substitute.sh
- Debian
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apt-get install gfan - Ubuntu
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apt-get install gfan - Arch Linux
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pacman -S gfan - Kali Linux
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apt-get install gfan - Fedora
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dnf install gfan - Windows (WSL2)
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sudo apt-get updatesudo apt-get install gfan - Raspbian
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apt-get install gfan - Dockerfile
- dockerfile.run/gfan_substitute
gfan
program for computing with Groebner fans
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.