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2014-09-05 15:49:05 -0600 | 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: |

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