2022-02-11 21:22:56 +0200 | received badge | ● Notable Question (source) |

2021-06-26 23:21:41 +0200 | received badge | ● Taxonomist |

2016-05-07 19:46:28 +0200 | received badge | ● Popular Question (source) |

2014-09-05 22:49:42 +0200 | received badge | ● Editor (source) |

2014-09-05 22:49:05 +0200 | asked a question | Problems with heft vectors in M2 I hope this question is on-topic on this forum. I am working with the "NormalToricVarieties" package in M2. Part of my research involves determining when the higher cohomology groups of certain twists of the structure sheaf of a toric variety vanish. I have a specific example where in computing HH^1(X,OO_X(1,1)) I am confronted with the following error: stdio:8:3:(3): error: heft vector required that is positive on the degrees of the variables {0, 1, 2, 3, 4, 5, 6} I know that this group should be trivial but somehow the absence of a heft vector is bothering the compiler. I'm not sure whether or not there is a way to get M2 to compute this group. Does anyone happen to know of any workarounds in this situation? The example I am using is as follows: |

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.