20–22 Dec 2017
University of Padova, Scuola Galileiana
Europe/Rome timezone

Session

Strings and Number Theory

20 Dec 2017, 14:30
Aula Magna (University of Padova, Scuola Galileiana)

Aula Magna

University of Padova, Scuola Galileiana

via San Massimo 33, 35121 Padova

Conveners

Strings and Number Theory

  • Francesca Ferrari (Amsterdam U.)
  • Roberto Volpato (Univ. Padova)

Strings and Number Theory: discussion session

  • There are no conveners in this block

Description

In this session, we review three topics that lie at the intersection between string theory and number theory.

(1) Moonshine.
The name "moonshine" refers to a series of mysterious coincidences relating modular forms and finite groups. The classical example, Monstrous moonshine, led to the discovery of new unexpected connections between string theory, conformal field theory, algebra and geometry. After a brief description of Monstrous moonshine, we discuss the more recent and still unexplained examples of Mathieu and umbral moonshine, and their possible relations with string theory on K3 surfaces.

(2) Mock modular forms and Black holes.
We review the connection between mock Jacobi forms and generating functions for "immortal" 1/4-BPS dyons in N=4 string models, as described by Dabholkar-Murthy-Zagier.

(3) 3-Manifold invariants and Quantum modular forms.
We introduce the concept of quantum modular form in relation to Chern-Simons theory, as first analyzed by Lawrence and Zagier. This is the starting point to investigate the appearence of quantum, false and mock modular forms in the context of 3-manifolds.

Presentation materials

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