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arXiv math/0311001math.APmath.SP
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Boutet de Monvel代数上的迹与拟迹

Traces and Quasi-traces on the Boutet de Monvel Algebra

Gerd Grubb, Elmar Schrohe

摘要:

本文对紧致流形上Boutet de Monvel微积分中的一类伪微分边值问题,构造了Kontsevich和Vishik的标准迹的一个类似.对于微积分中的算子A,(零类)和一个辅助算子B,由一个强椭圆二阶微分算子和一个椭圆算子在边界上的Dirichlet实现构成,我们考虑系数C_0(A,B)在预解迹Tr(A(B-λ)^{-N})的渐近展开中的应用(N大)的幂和对数幂,因为λ在复平面的适当扇区中趋于无穷大。当B可逆时,C_0(A,B)等同于广义zeta函数<$(A,B,s)= Tr(AB^{-s})在s=0处的亚纯扩张的洛朗级数中s^0的系数.我们证明了C_0(A,B)一般是一个拟迹,在这个意义上它在模局部项的模算子[A,A ']上为零,并且有一个与模局部项的模B无关的特定值;我们还指出了局部"误差“为零的特殊情况,使得C_0(A,B)是A的一个明确定义的迹。我们的主要工具是精确分析的渐近展开的预解迹,基于伪微分计算涉及有理函数(特别是拉盖尔函数)的正常变量。

英文摘要:

We construct an analogue of Kontsevich and Vishik's canonical trace for a class of pseudodifferential boundary value problems in Boutet de Monvel's calculus on compact manifolds with boundary. For an operator A in the calculus (of class zero), and an auxiliary operator B, formed of the Dirichlet realization of a strongly elliptic second-order differential operator and an elliptic operator on the boundary, we consider the coefficient C_0(A,B) of (-λ)^{-N} in the asymptotic expansion of the resolvent trace Tr(A(B-λ)^{-N}) (with N large) in powers and log-powers of λas λtends to infinity in a suitable sector of the complex plane. C_0(A,B) identifies with the coefficient of s^0 in the Laurent series for the meromorphic extension of the generalized zeta function ζ(A,B,s)= Tr(AB^{-s}) at s=0, when B is invertible. We show that C_0(A,B) is in general a quasi-trace, in the sense that it vanishes on commutators [A,A'] modulo local terms, and has a specific value independent of B modulo local terms; and we single out particular cases where the local ``errors'' vanish so that C_0(A,B) is a well-defined trace of A. Our main tool is a precise analysis of the asymptotic expansion of the resolvent trace, based on pseudodifferential calculations involving rational functions (in particular Laguerre functions) of the normal variable.

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