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arXiv · 2207.04811

Asymptotic Spectral Flow

Xianzhe Dai·Yihan Li
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Abstract

In this paper we study the asymptotic behavior of the spectral flow of a one-parameter family $\{D_s\}$ of Dirac operators acting on the spinor bunldle $S$ twisted by a vector bundle $E$ of rank $k$, with the parameter $s\in [0,r]$ when $r$ gets sufficiently large. Our method uses the variation of eta invariant and local index theory technique. The key is a uniform estimate of the eta invariant $\bar{\eta}(D_r)$ which is established via local index theory technique and heat kernel estimate.

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Xianzhe Dai, Yihan Li. 2022-07-11. Asymptotic Spectral Flow. https://doi.org/10.1007/s00209-023-03229-2

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