Asymptotic theory of in-context learning by linear attention
Yue M. Lu (Harvard University) 9 a.m., Wed., Jun. 19, 2024Zoom Meeting No.: 817 9258 2718 (Password: 600510)
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SIMIS Seminar on Field Theory and String Theory: B-brane transport in nonabelian GLSMs and its applications
Speaker: Jirui Guo (Tongji University) Abstract: B-branes are the boundary conditions of gauged linear sigma models (GLSM) compatible with B-type topological twist. Their categorical structure provides a powerful tool in analysing the phases of the GLSMs. A transport of the brane from one phase to another realizes an explicit faithful functor between the two phases. …
Symmetries Of Algebraic Manifolds
Speaker: DE-QI ZHANG (NUS) Abstract: In the first 60 min of the 2h lecture (for year-one graduates), we introduce the projective variety, affine variety, morphisms between varieties, and the Néron-Severi group. In the second half of the lecture (for year-two onwards graduates), we introduce the Kawaguchi-Silverman conjecture (KSC) about the equivalence of dynamical degree and …
SIMIS Seminar on Field Theory and String Theory: Orientifold Calabi-Yau threefolds: divisor exchanges and reflections
Speaker: Xin Gao (Sichuan University) Abstract: We systematically constructed orientifold Calabi-Yau threefolds, encompassing both divisor exchange and multiple divisor reflection involutions. Expanding our classification, we reached h^{1,1}(X)=12 using a database from the Kreuzer-Skarke list. We identified 156,509 proper divisor exchange involutions, and explored over 1 billion reflection types. Under these involutions, we clarified some ambiguities …
SIMIS Seminar on Field Theory and String Theory: Bootstrapping the Abelian Lattice Gauge Theories
Speaker: Zhijin Li (Southeast University) Abstract: In this talk, I will introduce a recent bootstrap study of the Z2 and U(1) Abelian lattice gauge theories, for which the loop equations and positivity conditions are employed for Wilson loops with lengths L ⩽ Lmax to derive two-sided bounds on the Wilson loop averages. I will address …
SIMIS Seminar on Field Theory and String Theory: A loop group valued Frobenius period map for a mod $p$ Shimura variety
Speaker: Qijun Yan (BIMSA) Abstract: In this talk, I will describe a variant of the zip period map of the special fibre of a Shimura variety (of good reduction) which defines the Ekedahl-Oort strata of S. The target of the period map is the moduli stack of 1-1 truncated local Shtukas. If time permits, I …
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