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  • 20220330_Si-LI_poster

    Elliptic chiral homology and chiral index

    Abstract: We present an effective quantization theory for chiral deformation of two-dimensional conformal field theories. We explain a connection between the quantum master equation and the chiral homology for vertex operator […]

  • Gopakumar-Vafa type invariants of holomorphic symplectic 4-folds

    Virtual

    Abstract: Gromov-Witten invariants of holomorphic symplectic 4-folds vanish and one can consider the corresponding reduced theory. In this talk, we will explain a definition of Gopakumar-Vafa type invariants for such a reduced […]