ncku-talk2014-01-02

NCTS(South)/ NCKU Math Colloquium

DATE 2014-01-02　15:10-16:00

PLACE R413, 4F, NCTS, NCKU

SPEAKER 張懷良教授（香港科技大學）

TITLE Introduction to FJRW Theory

ABSTRACT For a Riemann surface C we call a line bundle "spin" if some power of it equals canonical line bundle of the curve. The moduli space of genus g curve C with a spin bundle admits a smooth compactification, denoted by \bar M_g^{1/n}.
For a polynomial W(x1,...,xn) FJRW invariants is constructed by intersecting certain cohomology classes \bar M_g^{1/n}. It is considered to be more universal than Gromov Witten theory. We shall brief the motivations of the theories and its algebraic constructions.

NCTS(South)/ NCKU Math Colloquium

DATE	2014-01-02　15:10-16:00

PLACE	R413, 4F, NCTS, NCKU

SPEAKER	張懷良教授（香港科技大學）

TITLE	Introduction to FJRW Theory

ABSTRACT	For a Riemann surface C we call a line bundle "spin" if some power of it equals canonical line bundle of the curve. The moduli space of genus g curve C with a spin bundle admits a smooth compactification, denoted by \bar M_g^{1/n}. For a polynomial W(x1,...,xn) FJRW invariants is constructed by intersecting certain cohomology classes \bar M_g^{1/n}. It is considered to be more universal than Gromov Witten theory. We shall brief the motivations of the theories and its algebraic constructions.