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arXiv 0901.4082math.SPmath.DG
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凸余紧双曲流形上的Eta不变量与奇型Selberg Zeta函数

Eta invariant and Selberg Zeta function of odd type over convex co-compact hyperbolic manifolds

Colin Guillarmou, Sergiu Moroianu, Jinsung Park

摘要:

研究了奇维凸余紧双曲流形$X:=Γ\backslash\hh^{2n+1}$上与旋量丛$Σ$相关联的奇型$Z_{Γ,Σ}^{\rm o}(λ)$的Selberg zeta函数的亚纯扩张和因子.我们定义了一个自然的eta不变$η(D)$与狄拉克操作$D$ $X$和证明,$η(D)=\frac{1}{πi}\log Z_{Γ,Σ}^{\rm o}(0)$,从而延长米尔森的公式,这个设置。作为一个副产品,我们做了充分的分析的谱和散射理论的狄拉克算子的渐近双曲流形。定义了奇签名算子的eta不变量,在一定条件下,在三维Schottky双曲流形的Schottky空间上描述了该不变量,并将其与Zovich分解公式联系起来.

英文摘要:

We show meromorphic extension and analyze the divisors of a Selberg zeta function of odd type $Z_{Γ,Σ}^{\rm o}(λ)$ associated to the spinor bundle $Σ$ on odd dimensional convex co-compact hyperbolic manifolds $X:=Γ\backslash\hh^{2n+1}$. We define a natural eta invariant $η(D)$ associated to the Dirac operator $D$ on $X$ and prove that $η(D)=\frac{1}{πi}\log Z_{Γ,Σ}^{\rm o}(0)$, thus extending Millson's formula to this setting. As a byproduct, we do a full analysis of the spectral and scattering theory of the Dirac operator on asymptotically hyperbolic manifolds. We also define an eta invariant for the odd signature operator and, under some conditions, we describe it on the Schottky space of 3-dimensional Schottky hyperbolic manifolds and relate it to Zograf factorization formula.

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