The virtual K-theory of Quot schemes of surfaces
The virtual K-theory of Quot schemes of surfaces
复制标题
曲面Quot方案的虚拟K理论
DOI:
10.1016/j.geomphys.2021.104154
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发表时间:
2021
影响因子:
1.5
通讯作者:
Pandharipande, Rahul
中科院分区:
文献类型:
--
作者:
Arbesfeld, Noah;Johnson, Drew;Lim, Woonam;Oprea, Dragos;Pandharipande, Rahul
We study virtual invariants of Quot schemes parametrizing quotients of dimension at most 1 of the trivial sheaf of rank N on nonsingular projective surfaces. We conjecture that the generating series of virtual K-theoretic invariants are given by rational functions. We prove rationality for several geometries including punctual quotients for all surfaces and dimension 1 quotients for surfaces X with p g> 0. We also show that the generating series of virtual cobordism classes can be irrational. Given a K-theory class on X of rank r, we associate natural series of virtual Segre and Verlinde numbers. We show that the Segre and Verlinde series match in the following cases:•[(i)] Quot schemes of dimension 0 quotients,•[(ii)] Hilbert schemes of points and curves over surfaces with p g> 0,•[(iii)] Quot schemes of minimal elliptic surfaces for quotients supported on fiber classes. Moreover, for punctual quotients of the trivial sheaf of rank N, we prove a new symmetry of the Segre/Verlinde series exchanging r and N. The Segre/Verlinde statements have analogues for punctual Quot schemes over curves.
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影响因子:
2.6
作者:
A. Marian;D. Oprea;R. Pandharipande
通讯作者:
A. Marian;D. Oprea;R. Pandharipande
影响因子:
1.8
作者:
R. Pandharipande;A. Pixton
通讯作者:
A. Pixton
影响因子:
1.5
作者:
C. Voisin
通讯作者:
C. Voisin
DOI:
10.1112/jlms/jdw043
发表时间:
2014
期刊:
Journal of the London Mathematical Society
影响因子:
--
作者:
Junliang Shen
通讯作者:
Junliang Shen
DOI:
10.1093/imrn/rny101
发表时间:
2017
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Drew Johnson
通讯作者:
Drew Johnson