29/04/2011, 13:30 — 14:30 — Room P3.10, Mathematics Building Yongbin Ruan, Michigan University
Gromov-Witten theory of elliptic orbifold and quasi-modular form
Gromov-Witten invariants count the number of pseudo-holomorphic curves. One often writes them in terms of generating functions. Occasionally, it posses some very beautiful properties such as being a quasi-modular form. In the talk, we will explain this phenomenon for elliptic orbifold . This is a joint work with Milanov, Krawitz and Shen.