学术报告
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20
2025-01
Liouville theorems for conformally invariant fully nonlinear equations and applications题目:Liouville theorems for conformally invariant fully nonlinear equations and applications 报告人:李岩岩教授 (美国Rutgers大学) 摘要:We present new results on optimal Liouville theorems for conformally invariant fully nonlinear equations in ...
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18
2025-01
The Arnold conjecture on symplectic Orbifolds题目: The Arnold conjecture on symplectic Orbifolds 报告人:王百灵(澳大利亚国立大学) 摘要:Arnold conjecture on a closed symplectic manifold states that each Hamiltonian diffeomorphism has at least was many fixed points as the sum of all the Betti n...
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18
2025-01
Lie groupoid structures on regular Donaldson moduli spaces and applications.题目:Lie groupoid structures on regular Donaldson moduli spaces and applications. 报告人:乔帅格(北京大学) 摘要:In the study of instanton moduli spaces, e.g. Kotschick-Morgan conjecture, Witten conjecture, K-theoretical Donaldson invar...
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18
2025-01
Hamiltonian 2 group action on symplectic orbifolds and reduction题目:Hamiltonian 2 group action on symplectic orbifolds and reduction 报告人:陈柏辉(四川大学) 摘要:Symplectic reduction on symplectic manifolds is defined for Hamiltonian group actions. It has important physics backgrounds and is an operation i...
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17
2025-01
kahler compactification of C^n and reeb dynamics题目:kahler compactification of C^n and reeb dynamics 报告人:李驰教授 (Rutgers大学) 摘要:Let X be a smooth Kahler compactification of Cn such that X ⊂ C^n is a complex submanifold. We prove that X must be biholomorphic to P^n. We also prove that on C^3...
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10
2025-01
Bounding Levi-flat hypersurfaces in Stein manifolds题目:Bounding Levi-flat hypersurfaces in Stein manifolds 报告人:周正一(中科院数学所) 摘要:Let M be a smooth real codimension two compact submanifold in a Stein manifold. I will explain the following theorem: Suppose that M has two elliptic compl...
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08
2025-01
Convexity of 2-convex translating and expanding solitons to the mean curvature flow in R^{n+1}题目:Convexity of 2-convex translating and expanding solitons to the mean curvature flow in R^{n+1} 报告人:谢君明 (美国罗格斯大学) 摘要: In this talk, we will discuss the convexity of 2-convex self-similar solutions to the mean curvature flow in R...
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07
2025-01
Stability of Compressible MHD Fluids Near a Background Magnetic Field题目:Stability of Compressible MHD Fluids Near a Background Magnetic Field 报告人: 吴家宏教授 (美国圣母大学) 摘要:This lecture presents recent stability results for the compressible magnetohydrodynamic (MHD) equations near a background magnetic field. We be...
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06
2025-01
Collapsed Riemannian Manifolds with Curvature Bound题目:Collapsed Riemannian Manifolds with Curvature Bound 报告人:Prof. Xiaochun Rong 摘要:In this mini-course, we give a quick introduction to the study of geometric and topological structures on an -collapsed Riemannian n-manifold M, i...
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06
2025-01
Dimension theory of endomorphisms of CP^k动力系统学术报告 题目:Dimension theory of endomorphisms of CP^k 报告人:何焱 助理教授(美国俄克拉荷马大学) 摘要: Let k \ge 1 be an integer and let f: CP^k \to CP^k be a holomorphic endomorphism of algebraic degree at least 2. Let \nu be an i...