Perverse sheaves and graphs on surfaces
Perverse sheaves and graphs on surfaces
复制标题
表面上的反常滑轮和图形
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
V. Schechtman
中科院分区:
文献类型:
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作者:
M. Kapranov;V. Schechtman
We give an explicit combinatorial description of the category Perv(S,N) of perverse sheaves on an oriented surface S (with boundary) with singularities at a given finite set N. The description is given in terms of any spanning graph K in S with the set of vertices N, so the category is defined entirely in terms of a ribbon graph. This description can be seen as an application, in the theory of perverse sheaves, of the idea of localization on a Lagrangian skeleton.
DOI:
10.4171/jems/791
发表时间:
2018
期刊:
arXiv: Algebraic Geometry
影响因子:
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作者:
T. Dyckerhoff;M. Kapranov
通讯作者:
M. Kapranov