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The Drinfeld Upper Half Plane and Smooth Representations of GL2(O_F)

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  • UserTom Adams, University of Cambridge
  • ClockWednesday 08 May 2024, 16:30-17:30
  • HouseMR12.

If you have a question about this talk, please contact Adam Jones .

Let F be a finite extension of the p-adic numbers with valuation ring O_F. The Drinfeld upper half plane is a non-archimedean analogue of the complex upper half plane. It is equipped with a natural action of GL2 and has become ubiquitous in the study of the representation theory of this group. After introducing this space, in this talk I will use Deligne-Lusztig theory to motivate why we might expect studying equivariant vector bundles with connection on affinoid subdomains of the Drinfeld upper half plane to be helpful for exhibiting p-adic geometric realisations of the irreducible, smooth (complex) representations of GL2 . I will then outline some recent work to this end, with a focus on some concrete examples.

This talk is part of the Algebra and Representation Theory Seminar series.

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