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math.AG2016
Cellular sheaf cohomology in Polymake
Lars Kastner, Kristin Shaw, Anna-Lena Winz
This chapter provides a guide to our polymake extension cellularSheaves. We first define cellular sheaves on polyhedral complexes in Euclidean space, as well as cosheaves, and thei…
math.AG2016★ 1 cited
Ext and Tor on two-dimensional cyclic quotient singularities
Lars Kastner
Given two torus invariant Weil divisors and on a two-dimensional cyclic quotient singularity , the groups ,…