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2016 Fiscal Year Final Research Report

Theory of endoscopy for an automorphic representation of a covering group

Research Project

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Project/Area Number 26610005
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Algebra
Research InstitutionKyoto University

Principal Investigator

Ikeda Tamotsu  京都大学, 理学研究科, 教授 (20211716)

Co-Investigator(Renkei-kenkyūsha) HIRAGA Kaoru  京都大学, 大学院理学研究科, 講師 (10260605)
Project Period (FY) 2014-04-01 – 2017-03-31
Keywords保型表現 / 保型形式 / 被覆群
Outline of Final Research Achievements

In this research project, we investigated Siegel Eisenstein series defined over a symplectic or a metaplectic group. In particular, we proved the functional equation of a Siegel series. Moreover, by a joint work with Katsurada, we develop a theory of the Gross-Keating invariant of a quadratic form over a non-archimedean local field. As an application, we obtained an explicit formula of a Siegel series.
We also considered the theory of lifting for a symplectic or unitary group defined over a totally real number field. We gave an interesting numerical example for a lifting of Hilbert-Siegel modular forms.

Free Research Field

整数論

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Published: 2018-03-22  

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