The relative Riemann-Roch theorem from Hochschild homology

The relative Riemann-Roch theorem from Hochschild homology
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Hochschild 同调的相对 Riemann-Roch 定理

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发表时间:
2006
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通讯作者:
A. Ramadoss
A. Ramadoss
中科院分区:
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作者:
A. Ramadoss

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本文试图澄清马卡里安的一个预印本[2],从而证明本文试图澄清马卡里安的一个预印本[2]。Markarian[2]的预印本证明了相对Riemann-Roch定理,其结果描述了HKR映射是如何不尊重余法的。本文详细阐述了文[2]中的核心计算。这些计算表明,由Todd亏格的平方根扭曲的HKR映射几乎保留了Mukai配对。这解决了Caldararu猜想的一部分[3]。相对Riemann-Roch定理是由这一点和Caldararu[4]的一个结果导出的。
This write up attempts to clarify a preprint by Markarian [2] which proves This paper attempts to clarify a preprint of Markarian [2]. The preprint by Markarian [2] proves the relative Riemann-Roch theorem using a result describing how the HKR map fails to respect comultiplication. This paper elaborates on the core computations in [2]. These computations show that the HKR map twisted by the square root of the Todd genus "almost preserves" the Mukai pairing. This settles a part of a conjecture of Caldararu[3]. The relative Riemann-Roch theorem follows from this and a result of Caldararu[4].