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Singular Hecke categories and thick KLR diagrammatics

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  • UserAmit Hazi (University of Leeds)
  • ClockThursday 17 July 2025, 11:15-12:15
  • HouseExternal.

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GCLW01 - Modular Lie theory

Hecke categories have been the driving force for understanding of how (p-)Kazhdan–Lusztig theory controlsrepresentation theory. As one would expect, singular Hecke categories (should) extend this picture to moresingular settings (e.g. singular blocks of algebraic groups). In this talk we construct an explicit diagrammatic isomorphism between a two-colour singular Hecke category and the rational quiver Temperley-Lieb algebra, an extension of the usual KLR algebra with “thick strands”.

This talk is part of the Isaac Newton Institute Seminar Series series.

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