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9 votes
1 answer
331 views

Tempered Iwahori-spherical representations

Consider a local field $F$ of characteristic 0 and $G=GL_n(F)$. It is well known (for example Cartiers article in Corvallis) that an admissible, irreducible representation $\pi$ of $G$ has a ...
Julien's user avatar
  • 163
8 votes
2 answers
1k views

Examples to keep in mind while reading the book 'The Admissible Dual...' by Bushnell and Kutzko and the importance of Interwining of representations

I am a beginner in the field of representation theory. I was reading the book 'The Admissible Dual of $GL(N)$ Via Compact Open Subgroups' by Bushnell and Kutzko. Let me first describe the book a ...
MathStudent's user avatar
2 votes
0 answers
415 views

Algebraic characters and quasi-characters of reductive algebraic group over non-archimedean local field

Let $G$ be a reductive algebraic group over $F$, where $F$ is a non-archimedean local field. Then $G(F)$ is a p-adic group. Let $\Psi(G)$ be the lattice of algebraic characters. Let $\Lambda_G$ be the ...
JJH's user avatar
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4 votes
1 answer
751 views

How to understand the representation theory of $SL(n)$ from $GL(n)$?

Let $F$ be a local field. Consider the group extension (split) $$ PSL(n,F) \rightarrow PGL(n,F) \rightarrow F^\times / (F^\times)^n.$$ What knowledge about $PGL(n)$ is necessary in order to understand ...
Marc Palm's user avatar
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9 votes
2 answers
626 views

Invariant functor for admissible representations of reductive groups over local fields

Hello, I have a question concerning a certain functor between represention categories. I'm rather sure this is already known, but I could not find a reference. Let $F$ be a local non-archimedean ...
Mirko's user avatar
  • 223