• 제목/요약/키워드: BGG category O

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FINITE QUOTIENTS OF SINGULAR ARTIN MONOIDS AND CATEGORIFICATION OF THE DESINGULARIZATION MAP

  • Helena Jonsson;Volodymyr Mazorchuk;Elin Persson Westin;Shraddha Srivastava;Mateusz Stroinski;Xiaoyu Zhu
    • 대한수학회지
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    • 제60권6호
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    • pp.1255-1302
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    • 2023
  • We study various aspects of the structure and representation theory of singular Artin monoids. This includes a number of generalizations of the desingularization map and explicit presentations for certain finite quotient monoids of diagrammatic nature. The main result is a categorification of the classical desingularization map for singular Artin monoids associated to finite Weyl groups using BGG category 𝒪.