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Jayce Getz : Hilbert modular generating functions with coefficients in intersection homology (Oct 24, 2007 4:25 PM)
In a seminal Inventiones 1976 paper, Hirzebruch and Zagier produced a set of cycles on certain Hilbert modular surfaces whose intersection numbers are the Fourier coefficients of elliptic modular forms with nebentypus. Their result can be viewed as a geometric manifestation of the Naganuma lift from elliptic modular forms to Hilbert modular forms. We discuss a general analogue of this result where the real quadratic extension is replaced by an arbitrary quadratic extension of totally real fields. Our result can be viewed as a geometric manifestation of quadratic base change for GL_2 over totally real fields. (joint work with Mark Goresky).
- Category: Algebraic Geometry
- Duration: 01:34:47
- Date: October 24, 2007 at 4:25 PM
- Views: 162
- Tags: seminar, Algebraic Geometry Seminar
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