An inductive approach to representations of general linear groups over compact discrete valuation rings
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arXiv
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| Format: | Preprint |
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2020
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| _version_ | 1866916107164581888 |
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| author | Crisp, Tyrone Meir, Ehud Onn, Uri |
| author_facet | Crisp, Tyrone Meir, Ehud Onn, Uri |
| contents | In his seminal Lecture Notes in Mathematics published in 1981, Andrey Zelevinsky introduced a new family of Hopf algebras which he called {\em PSH-algebras}. These algebras were designed to capture the representation theory of the symmetric groups and of classical groups over finite fields. The gist of this construction is to translate representation-theoretic operations such as induction and restriction and their parabolic variants to algebra and coalgebra operations such as multiplication and comultiplication. The Mackey formula, for example, is then reincarnated as the Hopf axiom on the algebra side. In this paper we take substantial steps to adapt these ideas for general linear groups over compact discrete valuation rings. We construct an analogous bialgebra that contains a large PSH-algebra that extends Zelevinsky's algebra for the case of general linear groups over finite fields. We prove several base change results relating algebras over extensions of discrete valuation rings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2005_05553 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | An inductive approach to representations of general linear groups over compact discrete valuation rings Crisp, Tyrone Meir, Ehud Onn, Uri Representation Theory In his seminal Lecture Notes in Mathematics published in 1981, Andrey Zelevinsky introduced a new family of Hopf algebras which he called {\em PSH-algebras}. These algebras were designed to capture the representation theory of the symmetric groups and of classical groups over finite fields. The gist of this construction is to translate representation-theoretic operations such as induction and restriction and their parabolic variants to algebra and coalgebra operations such as multiplication and comultiplication. The Mackey formula, for example, is then reincarnated as the Hopf axiom on the algebra side. In this paper we take substantial steps to adapt these ideas for general linear groups over compact discrete valuation rings. We construct an analogous bialgebra that contains a large PSH-algebra that extends Zelevinsky's algebra for the case of general linear groups over finite fields. We prove several base change results relating algebras over extensions of discrete valuation rings. |
| title | An inductive approach to representations of general linear groups over compact discrete valuation rings |
| topic | Representation Theory |
| url | https://arxiv.org/abs/2005.05553 |