学术报告
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11
2017-05
Cantor and Sierpinski, Julia and Fatou: Crazy Topology in Complex Dynamics - Robert L. Devaney教授，（美国波士顿大学）题目：Cantor and Sierpinski, Julia and Fatou: Crazy Topology in Complex Dynamics 报告人：Robert L. Devaney教授，（美国波士顿大学） 摘要：In this talk, we shall describe some of the rich topological structures that arise as Julia sets of certain complex functions in...
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09
2017-05
Existence of invariant tori in reversible mappings-柳彬教授 (北京大学)题目：Existence of invariant tori in reversible mappings 报告人：柳彬教授 (北京大学) Abstract: We study reversible diffeomorphisms with n angular variables and only one action variable. Under some reasonable non-degeneracy conditions, we prove that the ...
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09
2017-05
A spatial SIS model in advective heterogeneous environments-楼元教授（人民大学、美国俄亥俄州立大学）题目：A spatial SIS model in advective heterogeneous environments 报告人: 楼元教授（人民大学、美国俄亥俄州立大学） Abstract：We study the dynamics of a SIS epidemic model of reaction-diffusion-advection type. The persistence of infected and susceptible populations and th...
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08
2017-05
Traveling wave solutions in a two-group SIR epidemic model with latent period-王智诚教授 兰州大学题目：Traveling wave solutions in a two-group SIR epidemic model with latent period 报告人: 王智诚教授 兰州大学 Abstract： We investigate full information on the existence and nonexistence of traveling waves of a two-group SIR epidemic model with lat...
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07
2017-05
Free boundary problems coming from ecology - 王明新教授 （哈尔滨工业大学）题目：Free boundary problems coming from ecology 报告人: 王明新教授 （哈尔滨工业大学） Abstract： This talk concerns with the free boundary problems coming from ecology. We shall introduce some methods to study the existence, uniqueness, regularity, spreading ...
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05
2017-05
Isolated singularities for some nonlinear elliptic equations.--周风教授（华东师范大学）题目：Isolated singularities for some nonlinear elliptic equations. 报告人：周风教授（华东师范大学） 摘要：We will talk about some results on the isolated singularities for some nonlinear elliptic equations including the nonlinear Choquard equations and the equation...
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04
2017-05
Algebraic codes for distributed storage applications.-Prof. Alexander Barg （University of Maryland）题目： Algebraic codes for distributed storage applications. 报告人：Prof. Alexander Barg （University of Maryland） Abstract： Widespread use of distributed storage systems has given rise to new problems in coding theory related to efficient and reli...
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03
2017-05
Cotorsion pairs and Gorenstein dimensions for complexes-Prof. Dr. Nanqing Ding (Nanjing University, China)题目：Cotorsion pairs and Gorenstein dimensions for complexes 报告人：Prof. Dr. Nanqing Ding (Nanjing University, China) 时间：2017年5月3日(周三)下午2:00—3:00 地点：首都师范大学本部教学2楼611教室 摘要：In this talk, we define the notion of Gorenstein ?-dimensions for co...
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03
2017-05
Utumi Modules-Prof. Dr. Mohamed F. Yousif (Ohio State University, USA)题目： Utumi Modules 报告人：Prof. Dr. Mohamed F. Yousif (Ohio State University, USA) 时间：2017年5月3日(周三)下午3:30--4:30 地点：首都师范大学本部教学2楼611教室 摘要：A right -module is called a Utumi Module ( -module) if, whenever and are submodules of with and th...
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26
2017-04
The D-standard and K-standard categories-叶郁教授 （中国科学技术大学77779193永利官网）题 目： The D-standard and K-standard categories 报告人： 叶郁教授 （中国科学技术大学77779193永利官网） 摘 要： In this talk we discuss the question whether any derived equivalence is standard. We introduce the notions of a D-standard abelian category and a K-standard add...