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arXiv 0811.1667math.FAmath.AP
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线性化流形上的伪微分算子

Pseudodifferential operators on manifolds with linearization

Cyril Levy

摘要:

本文给出了光滑非紧流形上的伪微分的构造,它与全局定义的坐标无关的完备符号演算相关联,推广了$\R^n$上的标准伪微分.我们考虑流形$M$的情况下,线性化的Bokobza-Haggiag的意义,使相关的(抽象的)指数映射提供全球的$M$与$\R^n$在任何一点的同胚。Cartan-Hadamard流形是这类流形的特例。抽象的指数映射编码的概念无穷的流形上,允许,模一些假设的$S_σ$有界几何,以定义施瓦茨空间的快速衰减功能,全球定义的傅立叶变换和类的符号与均匀和衰减控制的$x$变量。给出了流形上的线性化及无穷远点控制的一些性质,构造了符号映射和$\la$ -量子化,余切丛上的显式Moyal星积,以及一类伪微分算子.我们表明,这些类是稳定的组合下,和$\la$ -量化映射给出了符号和伪微分算子之间的代数同构(这取决于线性化)。我们研究,在我们的设置,$L^2$ -连续性,并给出了一些例子。我们特别表明,双曲2-空间$\HH$有$S_1$有界的几何,允许建设一个全球性的符号演算的伪微分算子$§(\HH)$。

英文摘要:

We present in this paper the construction of a pseudodifferential calculus on smooth non-compact manifolds associated to a globally defined and coordinate independant complete symbol calculus, that generalizes the standard pseudodifferential calculus on $\R^n$. We consider the case of manifolds $M$ with linearization in the sense of Bokobza-Haggiag, such that the associated (abstract) exponential map provides global diffeomorphisms of $M$ with $\R^n$ at any point. Cartan--Hadamard manifolds are special cases of such manifolds. The abstract exponential map encodes a notion of infinity on the manifold that allows, modulo some hypothesis of $S_σ$-bounded geometry, to define the Schwartz space of rapidly decaying functions, globally defined Fourier transformation and classes of symbols with uniform and decaying control over the $x$ variable. Given a linearization on the manifold with some properties of control at infinity, we construct symbol maps and $\la$-quantization, explicit Moyal star-product on the cotangent bundle, and classes of pseudodifferential operators. We show that these classes are stable under composition, and that the $\la$-quantization map gives an algebra isomorphism (which depends on the linearization) between symbols and pseudodifferential operators. We study, in our setting, $L^2$-continuity and give some examples. We show in particular that the hyperbolic 2-space $\HH$ has a $S_1$-bounded geometry, allowing the construction of a global symbol calculus of pseudodifferential operators on $§(\HH)$.

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