Title：MSP theory: counting curves in Quintic Calabi Yau threefolds

Speaker：Huai-Liang Zhang （Hong Kong University of Science and Technology）

Time：2018年5月30日（周三）    下午 16:00--17:30

Room：东区管理科研楼   数学科学学院1418室

Abstract：Gromov Witten theory counts complex curves in a Calabi Yau (CY) manifold. In many cases the manifold admits Landau Ginzburg phases, and the (LG) counting also enjoys symplectic and algebro-geometric constructions. Recently a new moduli space, called Mixed Spin P field, is provided to quantize the parameter linking CY to LG phases. The theory provides an algorithm recovering of Zinger's formula on g=1 quintic GW invariants. Another application is it proves finite generation conjecture of BCOV and Yamaguchi-Yau.