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
DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
A. Ramadoss
中科院分区:
文献类型:
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作者:
A. Ramadoss
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].