On cubes of Frobenius extensions
arXiv:1308.5994 · doi:10.4171/171-1/7
Abstract
Given a hypercube of Frobenius extensions between commutative algebras, we provide a diagrammatic description of some natural transformations between compositions of induction and restriction functors, in terms of colored transversely-intersecting planar 1-manifolds. The relations arise in the first and third authors' work on (singular) Soergel bimodules.
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