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Back to Departmental Colloquium: Spring 2005

Departmental Colloquium


Date: Tuesday, Feb 8, 2005

Time: 4:15PM

Location: JWB 335

Special Colloquium Tuesday


Heegner Points and Modular Forms

Title

Heegner Points and Modular Forms

Abstract

Modular forms play an increasingly central role in modern number theory. One classical example is the famous j -invariant whose values at Heegner points, i.e., at quadratic irrationalities in the upper half plane, are known as singular moduli and are of particular arithmetic interest. Recently, Zagier realized the generating series of the traces of the singular moduli as a meromorphic modular form of weight 3/2. In this talk, we give an introduction to the subject, discussing this work and related results and provide a generalization to modular functions on Riemann surfaces of arbitrary genus. Furthermore, we realize a certain generating series of arithmetic intersection numbers and Faltings heights of Heegner points as the derivative of Zagier’s Eisenstein series of weight 3/2.

Number Theory Algebraic Geometry

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