• Medientyp: E-Artikel
  • Titel: VI-modules in non-describing characteristic, part II
  • Beteiligte: Nagpal, Rohit
  • Erschienen: Walter de Gruyter GmbH, 2021
  • Erschienen in: Journal für die reine und angewandte Mathematik (Crelles Journal)
  • Sprache: Englisch
  • DOI: 10.1515/crelle-2021-0054
  • ISSN: 0075-4102; 1435-5345
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>Abstract</jats:title> <jats:p>We classify all irreducible generic <jats:inline-formula id="j_crelle-2021-0054_ineq_9999"> <jats:alternatives> <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mi>VI</m:mi> </m:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_crelle-2021-0054_eq_0435.png" /> <jats:tex-math>{\mathrm{VI}}</jats:tex-math> </jats:alternatives> </jats:inline-formula>-modules in non-describing characteristic. Our result degenerates to yield a classification of irreducible generic <jats:inline-formula id="j_crelle-2021-0054_ineq_9998"> <jats:alternatives> <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mi>FI</m:mi> </m:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_crelle-2021-0054_eq_0401.png" /> <jats:tex-math>{\mathrm{FI}}</jats:tex-math> </jats:alternatives> </jats:inline-formula>-modules in arbitrary characteristic. Equivalently, we provide a complete classification of irreducibles of admissible <jats:inline-formula id="j_crelle-2021-0054_ineq_9997"> <jats:alternatives> <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mrow> <m:msub> <m:mi>𝐆𝐋</m:mi> <m:mi mathvariant="normal">∞</m:mi> </m:msub> <m:mo>⁢</m:mo> <m:mrow> <m:mo stretchy="false">(</m:mo> <m:msub> <m:mi>𝔽</m:mi> <m:mi>q</m:mi> </m:msub> <m:mo stretchy="false">)</m:mo> </m:mrow> </m:mrow> </m:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_crelle-2021-0054_eq_0337.png" /> <jats:tex-math>{\mathbf{GL}_{\infty}(\mathbb{F}_{q})}</jats:tex-math> </jats:alternatives> </jats:inline-formula>-representations in non-describing characteristic, which is new even in characteristic zero. This result degenerates to provide a complete classification of irreducibles of admissible <jats:inline-formula id="j_crelle-2021-0054_ineq_9996"> <jats:alternatives> <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:msub> <m:mi>S</m:mi> <m:mi mathvariant="normal">∞</m:mi> </m:msub> </m:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_crelle-2021-0054_eq_0227.png" /> <jats:tex-math>{S_{\infty}}</jats:tex-math> </jats:alternatives> </jats:inline-formula>-representations in arbitrary characteristic, which is new away from characteristic zero.</jats:p>