学术报告
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15
2019-01
Nonlocal models and their applications-Qiang Du (杜强)(Fu Foundation Professor of Applied Mathematics at Columbia University)综述报告 题目: Nonlocal models and their applications 报告人：Qiang Du (杜强), Fu Foundation Professor of Applied Mathematics at Columbia University 报告人简介： Prof. Du is the Fu Foundation Professor of Applied Mathematics at Columbia. He ...
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14
2019-01
偏微分方法研讨会偏微分方法研讨会 时间： 1月14日（周一）14:30-15:15 题目：Sharp regularizing estimates for the gain term of the Boltzmann collision operator 报告人：江金城（清华大学 新竹） Abstract : We prove the sharp regularizing estimates for the gain term of the Boltzmann collision ope...
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13
2019-01
Shifted Poisson geometry of moduli space - 华诤教授（香港大学）学术报告 题目： 报告人： 华诤教授（香港大学） 摘要：Following the work of Calaque, Pantev, Toen, Vaquie and Vezzosi, we show that the moduli stack of bounded complexes of vector bundles on a smooth projective Calabi-Yau d-fold admits a (1-d) shifted Poisson st...
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13
2019-01
On some links between center and cohomology-单芃 教授（清华大学）题 目：On some links between center and cohomology 报告人：单芃 教授（清华大学） Abstract:Representations of many remarkable objects, such as Lie algebras, Hecke algebras, algebraic groups, etc., has deep relationships with geometry of some algebraic varie...
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11
2019-01
On two coloring problems-陆玫 教授 -(清华大学)题 目：On two coloring problems 报告人：陆玫 教授 (清华大学) Abstract:Let G = (V, E) be a simple undirected graph with the vertex set V and the edge set E.An d-distance (resp. exactly d-distance) coloring of V (G) is to color the vertices of V (G) such t...
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11
2019-01
A new code-based IND-CCA secure public key scheme-王丽萍 研究员 (中科院信工所)题目：A new code-based IND-CCA secure public key scheme 报告人：王丽萍 研究员 (中科院信工所) Abstract :We first propose a new code family—lattice codes. Based on the lattice codes, we construct a new IND-CCA secure public key scheme. We also make a compariso...
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11
2019-01
Eta Invariant, Spectral Flow and their Asymptotic-李一寒 （南开大学）题目：Eta Invariant, Spectral Flow and their Asymptotic 报告人：李一寒 （南开大学） 摘要 : In this talk, I will present the work of my doctoral thesis '/xsbg/'Asymptotic Spectral Flow'/xsbg/'. We will start by shortly reviewing the Eta Invariant defined for Dirac oper...
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11
2019-01
On ends of finite-volume noncompact mainfolds of nonpositive curvature-吴云辉 (清华大学)题目：On ends of finite-volume noncompact mainfolds of nonpositive curvature 报告人：吴云辉 (清华大学) Abstract :We confirm a folklore conjecture which suggests that for a complete noncompact manifold $M$ of finite volume with sectional curvature $-1 /l...
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10
2019-01
Perfect codes in circulant graphs-周三明 教授（墨尔本大学）题 目：Perfect codes in circulant graphs 报告人：周三明 教授（墨尔本大学） Abstract : Let G = (V, E) be a graph and t a positive integer. A perfect t-code in G is a subset C of V such that every vertex of G is at distance no more than t to exa...
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09
2019-01
The Littlewood-Paley decomposition for periodic functions and applications to the Boussinesq equations-Professor Jiahong Wu（Oklahoma State University, USA）题目：The Littlewood-Paley decomposition for periodic functions and applications to the Boussinesq equations 报告人：Professor Jiahong Wu （Oklahoma State University, USA） Abstract : The Littlewood-Paley decomposition for functions defined on the w...