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arXiv · 1508.05579

Filtered moment graph sheaves

Peter Fiebig·Martina Lanini
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Abstract

We introduce the notion of (co-)filtered sheaves on quotients of moment graphs by a group action. We then introduce a (co-)filtered version of the canonical sheaves of Braden and MacPherson and show that their global sections are the indecomposable projective objects in a suitably defined exact category.

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Peter Fiebig, Martina Lanini. 2015-08-23. Filtered moment graph sheaves. https://arxiv.org/abs/1508.05579

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