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检索条件"主题词=index theory"
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index Iteration theory for Brake Orbit Type Solutions and Applications
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Analysis in theory and Applications 2021年 第2期37卷 129-156页
作者: Chungen Liu Yiming Long Duanzhi Zhang School of Mathematics and Information Science Guangzhou UniversityGuangzhouGuangdong 510006China Chern Institute of Mathematics and LPMC Nankai UniversityTianjin 300071China School of Mathematical Sciences and LPMC Nankai UniversityTianjin 300071China
In this paper,we give a survey on the index iteration theory of an index theory for brake orbit type solutions and its applications in the study of brake orbit problems including the Seifert conjecture and the minimal... 详细信息
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Positive curvature, symmetry, and topology
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Frontiers of Mathematics in China 2016年 第5期11卷 1099-1122页
作者: Manuel AMANN Fakultat fur Mathematik Institut fiir Algebra und Geometrie Karlsruher Institut fiir Technologie Englerstraβe 2 76131 Karlsruhe Germany
We depict recent developments in the field of positive sectional curvature, mainly, but not exclusively, under the assumption of isometric torus actions. After an elaborate introduction to the field, we shall discuss ... 详细信息
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Homoclinic Orbits for First Order Hamiltonian Systems with Some Twist Conditions
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Acta Mathematica Sinica,English Series 2015年 第11期31卷 1725-1738页
作者: Yuan SHAN School of Mathematics and Statistics Nanjing Audit University
In this paper, we study the nonperiodic first-order Hamiltonian system u = JL(t)u + JH'(t,u), where HεCl(RxR2n). With some assumptions on L, the corresponding Hamiltonianoperator has only discrete spectrum. B... 详细信息
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QUANTIZATION COMMUTES WITH REDUCTION,A SURVEY
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Acta Mathematica Scientia 2021年 第6期41卷 1859-1872页
作者: Xiaonan MA Institut de Mathématiques de Jussieu-Paris Rive Gauche Universitéde ParisUFR de MathématiquesCase 701275205Paris Cedex 13France
We review the themes relating to the proposition that“quantization commutes with reduction”([Q,R]=0),from symplectic manifolds to Cauchy-Riemann manifolds.
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