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Abstract: We consider a population structured in trait. When a birth occurs, the trait of the parent is hereditarily transmitted to the offspring unless a mutation occurs. We associate with each indiv...
When groups compete for members, the resulting dynamics of human social activity may be un- derstandable with simple mathematical models. Here, we apply techniques from dynamical systems and perturb...
The competition graph of a digraph D is a graph which has the same vertex set as D and has an edge between x and y if and only if there exists a vertex v in D such that (x,v) and (y,v) are arcs of D. ...
Within a concept of the fractional diffusion equation and subordination, the paper examines the influence of a competition between long waiting times and long jumps on the escape from the poten-tial ...
By using the theory of coincidence degree, sufficient conditions for the existence and nonexistence of positive periodic solutions of a class of neutral delay competition model are obtained.
This paper investigates an abstract game of political competition between two parties. All political positions are represented by points in a plane, and the parties choose positions that are as close ...
By using the continuation theorem of Mawhin's coincidence degree theory, a sufficient condition is derived for the existence of positive periodic solutions for a distributed delay competition model {u...
期刊信息 篇名 The Qualitative Analysis of N-species Nonlinear Prey-competition Systems 语种 英文 撰写或编译 撰写 作者 赵建东,陈文成 第一作者单位 山东科技大学 刊物名称 Applied Mathematics and Computation(SCI) 页面 2004,149,567-576 出版日期 2004年 月 ...
April 25, 2007,LAWRENCE — Six University of Kansas students with an affinity for solving math problems won cash awards totaling more than $1,500 in the 25th annual KU Mathematics Prize Competition.
The Canadian Mathematical Society is pleased to announce the 2006 Endowment Grants Competition to fund projects that contribute to the broader good of the mathematical community. The Endowment Fund is...

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