On the Realization of Some Degenerate Automorphic Forms on Certain Griffiths-Schmid Varieties

GALOIS REPRESENTATIONS AND AUTOMORPHIC FORMS SEMINAR
Topic:On the Realization of Some Degenerate Automorphic Forms on Certain Griffiths-Schmid Varieties
Speaker:Henri Carayol
Affiliation:University of Strasbourg
Date:Wednesday, November 10
Time/Room:2:15pm - 3:15pm/S-101
Video Link:https://video.ias.edu/galois/carayol

Some automorphic forms, despite the fact they are algebraic, do not have any interpretation as cohomology classes on a Shimura variety: therefore nothing is known at present on their expected arithmetic properties. I shall explain how such forms appear to be related to more general objects (Griffiths-Schmid varieties) and discuss some related rationality questions.