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Speaker: Weiguang Cao (IPMU, Tokyo University) Abstract: Recently, the notion of symmetry has been generalized. While ordinary symmetry can be described by a (1) co-dimension 1, (2) topological operator with (3) group-like fusion rule, generalized symmetries are described by operators that relax one or more conditions. Generalized symmetry plays an important role not only in …

SIMIS Seminar on Field Theory and String Theory: Non-invertible Symmetry in Lattice Models 查看全文 »

Speaker: Ye Yuan (Zhejiang University) Abstract: In this talk I will discuss a differential representation for holographic four-point correlators. In this representation, the correlators are given by acting differential operators on certain seed functions. The number of these functions is much smaller than what is normally seen in known examples of holographic correlators, and all …

SIMIS Seminar on Field Theory and String Theory: A differential representation for holographic correlators 查看全文 »

Speaker: Junwu Tu (ShanghaiTech University) Abstract: We shall discuss the categorical enumerative invariants associated with a smooth projective family of Calabi-Yau 3-folds. In particular, we study the holomorphic anomaly equations in this context. This naturally leads to the study of geometric structures on moduli spaces of smooth projective Calabi-Yau 3-folds. Time: 16:00 ~ 17:00, Mon., Mar. 25, 2024 …

SIMIS Seminar on Field Theory and String Theory: Geometry from Categorical Enumerative Invariants 查看全文 »

Speaker: Satoshi Nawata (Fudan University) Abstract: The study of 3d mirror symmetry has greatly enhanced our understanding of various aspects of 3d N=4 theories. In this talk, starting with known mirror pairs of 3d N=4 quiver gauge theories and gauging discrete subgroups of the flavour or topological symmetry, I discuss new mirror pairs with non-trivial …

SIMIS Seminar on Field Theory and String Theory: Duality of 3d N=4 theories with 1-form symmetry 查看全文 »

Speaker: Xinan Zhou (Kavli ITS, UCAS & ShanghaiTech University) Abstract: In this talk, I will discuss correlation functions in 6d (2, 0) theories of two 1/2-BPS operators inserted away from a 1/2-BPS surface defect. In the large central charge limit the leading connected contribution corresponds to sums of tree-level Witten diagram in AdS7×S4 in the …

SIMIS Seminar on Field Theory and String Theory: Defect Two-point Functions in 6d (2,0) Theories 查看全文 »

CRASH COURSE : N=1 d=10 SYM and its SUSY from pure spinors point of view.A.Losev (SIMIS) Plan of the crash course:1.BV formalism and infinity-structures2.BV integral and theorem of homotopical transit3.Symmetries and higher symmetries from BV point of view4.Examples of higher symmetries in ordinary and in supersymmetric theories5.Spinors in different dimensions and their proprieties6.Fundamental theory formulated …

CRASH COURSE: N=1 d=10 SYM and its SUSY from pure spinors point of view 查看全文 »

The opening ceremony of ICCM Annual 2023 was held on January 2, 2024. 【要闻】聚焦基础科学，探索数学学科发展新篇章！世界华人数学家联盟年会开幕，陈吉宁书记出席并致辞

The funding ceremony of the Shanghai Institute of Mathematics and Interdisciplinary Sciences was held in the new building of the Institute on January 2, 2024, and was jointly unveiled by Mayor Zheng Gong and Professor Shing-Tung Yau. At the unveiling ceremony, the Shanghai Municipal Science and Technology Commission, the Yangpu District Government, and Fudan University …

2024年1月2日正式揭牌 查看全文 »