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SUMMARY:Derived Hecke action for weight one modular forms via classicality
  - Gyujin Oh (Columbia University)
DTSTART:20251104T143000Z
DTEND:20251104T153000Z
UID:TALK238015@talks.cam.ac.uk
CONTACT:Bence Hevesi
DESCRIPTION: It is known that a p-adic family of modular forms does not\nn
 ecessarily specialize into a classical modular form at weight one\,\nunlik
 e the modular forms of weight 2 or higher. We will explain how this\n"obst
 ruction to classicality" leads to a derived action on modular forms\nof we
 ight one\, which can also be understood as the so-called derived\nHecke op
 erator at p. We will discuss the role of the derived action in\nthe study 
 of p-adic periods of the adjoint of the weight one modular\nforms.
LOCATION:MR13
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