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2016 | OriginalPaper | Chapter

Germ Expansions for Real Groups

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Abstract

We shall introduce an archimedean analogue of the theory of p-adic Shalika germs. These are the objects for p-adic groups that govern the singularities of invariant orbital integrals. More generally, we shall formulate an archimedean theory of germs for weighted orbital integrals. In the process we shall be led to some interesting questions on a general class of asymptotic expansions. Weighted orbital integrals are the parabolic terms on the geometric side of the trace formula. An understanding of their singularities is important for the comparison of trace formulas. It might also play a role in the deeper spectral analysis of a single trace formula.

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Metadata
Title
Germ Expansions for Real Groups
Author
James Arthur
Copyright Year
2016
DOI
https://doi.org/10.1007/978-3-319-41424-9_1

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