Ask Your Question

CEH's profile - activity

2024-08-09 10:55:13 +0100 received badge  Popular Question (source)
2017-06-01 23:45:47 +0100 asked a question Is there a way to compute the secondary (GKZ) fan with sage?

I am doing research in Toric varieties and I am hoping for a quick way to look at examples.

Looking through "Rational Polyhedral Fans" and "Toric Varieties" pages there is a lot of information that can be calculated about fans/toric varieties but I have not found code to calculate the secondary fan.

I am looking for a simple way to do this either given a Toric variety (or its fan), or from starting from the set of $\beta$'s, as described in Chapter 14 of "Toric Varieties" by Cox, Little, Schenck.

Does anyone know if Sage has anyway to do this?