The Mukai pairing, I: a categorical approach
The Mukai pairing, I: a categorical approach
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向井配对,I:绝对方法
DOI:
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
S. Willerton
中科院分区:
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作者:
Andrei Căldăraru;S. Willerton
We study the Hochschild homology of smooth spaces, emphasizing the importance of a pairing which generalizes Mukai's pairing on the cohomology of K3 surfaces. We show that integral transforms between derived categories of spaces induce, functorially, linear maps on homology. Adjoint functors induce adjoint linear maps with respect to the Mukai pairing. We define a Chern character with values in Hochschild homology, and we discuss analogues of the Hirzebruch-Riemann-Roch theorem and the Cardy Condition from physics. This is done in the context of a 2-category which has spaces as its objects and integral kernels as its 1-morphisms.