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7 votes
1 answer
449 views

Intuition behind centralizers of Langlands parameters

In the description of the Langlands correspondence for $\mathbb{Q}_p$, we consider admissible representations of $G(\mathbb{Q}_p)$ for $G$ a reductive group defined over $\mathbb{Q}_p$, and admissible …
Alexander's user avatar
  • 953
2 votes
0 answers
80 views

Pseudocoefficients and Traces of Standard Representations

Let $G$ be a connected reductive group over $\mathbb{R}$ (you may assume that $G/Z(G)$ is anisotropic if necessary) and suppose $\pi$ is a discrete series representation of $G(\mathbb{R})$ with centra …
Alexander's user avatar
  • 953
2 votes
0 answers
94 views

$p$-adic Harish-Chandra character of a stable virtual character

Let $F$ be a $p$-adic field and let $G$ be a reductive group over $F$. Associated to an irreducible admissible representation of $\pi$ of $G(F)$, we have a distribution character $\Theta_{\pi}$ define …
Alexander's user avatar
  • 953
3 votes
0 answers
87 views

Recovering a $G$-valued representation/parameter

Number theoretic phrasing Let $G$ be a connected reductive group over a characteristic $0$ field $F$. Associated to $G$ is its Langlands dual group $^{L}G$. For every dominant cocharacter $\mu$ of $G …
Alexander's user avatar
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