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9 votes
0 answers
963 views

Geometrization of the global Langlands correspondence?

Fargues-Scholze famously describe arithmetic local Langlands via global geometric Langlands on the Fargues-Fontaine (FF) curve. The FF curve acts like an algebraic curve over $\mathbb{C}_p$ (its ...
David Corwin's user avatar
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2 votes
1 answer
164 views

What is the sum operation on torsors induced by Weil uniformization?

Let $k$ be an algebraically closed field, $G$ a reductive group, and $C$ a curve. The algebraic version of the Weil uniformization theorem (see e.g. arXiv:1511.06271v2) says that groupoid of $G$-...
Doron Grossman-Naples's user avatar
4 votes
0 answers
229 views

Does $\text{Bun}_G$ have the homotopy type of a classifying space in positive characteristic?

In these lecture notes by Jacob Lurie, he identifies the homotopy type of $\text{Bun}_G$ with that of a certain classifying space $B\mathcal{P}_{sm}$ when the group scheme $G$ is over $\mathbb{C}$. ...
xir's user avatar
  • 2,044
8 votes
0 answers
1k views

Ramified Geometric Langlands

Is the following a reasonable formulation of (a part of) the geometric Langlands conjecture for $\mathrm{GL}_n$ over a curve $X$? (*) Let $\mathcal{L}$ be an irreducible rank $n$ $\ell$-adic local ...
Dr. Evil's user avatar
  • 2,751
24 votes
1 answer
3k views

What do Hecke eigensheaves actually look like?

Let $\mathbb F_q$ be a finite field, $C$ a curve over $\mathbb F_q$ of genus $g\geq 2$, $\rho: \pi_1(C) \to GL_2(\overline{\mathbb Q}_\ell)$ an irreducible local system. The geometric Langlands ...
Will Sawin's user avatar
  • 148k