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Singular light leaves

  • Ben Elias

    University of Oregon, Eugene, USA
    ORCID

  • Hankyung Ko

    Uppsala University, Sweden
    ORCID

  • Nicolas Libedinsky

    University of Chile, Santiago, Chile
    ORCID

  • Leonardo Patimo

    University of Pisa, Italy
    ORCID
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Abstract

For any Coxeter system, we introduce the concept of singular light leaves, answering a question of Williamson raised in 2008. Singular light leaves provide a combinatorial basis for Hom spaces between singular Soergel bimodules.

Cite this article

Ben Elias, Hankyung Ko, Nicolas Libedinsky, Leonardo Patimo, Singular light leaves. J. Eur. Math. Soc. (2025), published online first

DOI 10.4171/JEMS/1715