A generalized Bondal–Orlov full faithfulness criterion for Deligne–Mumford stacks

• Jack Hall ^[1] ; Kyle Priver ^[2]
  1. [1] University of Melbourne

     University of Melbourne

     Australia

     
  2. [2] Los Angeles, USA
• Localización: Selecta Mathematica, New Series, ISSN 1022-1824, Vol. 32, Nº. 3, 2026
• Idioma: inglés
• DOI: 10.1007/s00029-026-01155-9
• Enlaces
  • Texto completo
• Resumen

  • Let X, Y be smooth projective varieties over C. Let K be a bounded complex of coherent sheaves on X×Y and let K : DbCoh(X) → DbCoh(Y ) be the resulting Fourier– Mukai functor. There is a well-known criterion due to Bondal–Orlov for K to be fully faithful. This criterion was recently extended to smooth Deligne–Mumford stacks with projective coarse moduli schemes by Lim–Polischuk. We extend this to all smooth, proper Deligne–Mumford stacks over arbitrary fields of characteristic 0. Along the way, we establish a number of foundational results for bounded derived categories of proper and tame morphisms of noetherian algebraic stacks (e.g., coherent duality).

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