BCAlgTori for GAP 4

Authors: Akinari Hoshi, Aiichi Yamasaki.
Needs: GAP,version >=4.9.3; GAP package HAP, version >=1.12.6;
Current version: ver.2022.01.27 (SearchPFilterRowBlocks was modified to ver.2021.12.07)
Old version: ver.2021.12.07 (crystcat.gap was modified for GAP 4.9.3 to RatProbAlgTori and MultInvField)
Contact: Akinari Hoshi, Aiichi Yamasaki.
URL: https://www.math.kyoto-u.ac.jp/~yamasaki/Algorithm/BCAlgTori/index.html
Download: zip

Description

This code provides algorithms for birational classification for algebraic tori.

Installation

Download BCAlgTori.zip and unpack it to ~/ (/home/username).
Then type "Read("BCAlgTori.gap");" on GAP.

Contents

Click the link below for further details.
BCAlgTori.zip-+-BCAlgTori.gap
              +-crystcat.gap
              +-FlabbyResolutionBC.gap
              +-NonInv.dat
              +-TorusInvariants.dat
              +-WeakStablyEquivalentClass.dat

References

[HY] Akinari Hoshi and Aiichi Yamasaki, Birational classification for algebraic tori, arXiv:2112.02280.