oscillation;
systems of difference equations;
continuous argument;
characteristic equation;
eigenvalue;
logarithmic norm;
D O I:
10.1016/j.jmaa.2005.03.015
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In this paper the oscillation of all solutions of system of the form y(t) + Sigma(n)(i=1) Pi y(t - tau(i)) = 0, where P-i is an element of R-m x m, tau(i) is an element of R (i = 1, 2,..., n), is studied. Necessary and sufficient conditions in terms of the characteristic equation and explicit conditions in terms of the eigenvalues or the logarithmic norms of the coefficient matrices are established. (c) 2005 Elsevier Inc. All rights reserved.
机构:
Department of Applied Mathematics, Beijing Institute of Technology, Beijing
Differential Equation Committee, Hebei Mathmatics SocietyDepartment of Applied Mathematics, Beijing Institute of Technology, Beijing
Tian Y.
Zhang Z.
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机构:
College of Mathematics and Information Science, Hebei Normal University, Hebei
Department of Applied Mathematics, Beijing Institute of TechnologyDepartment of Applied Mathematics, Beijing Institute of Technology, Beijing
Zhang Z.
Ge W.
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机构:
Department of Applied Mathematics, Beijing Institute of Technology, Beijing
Differential Equation Committee, Hebei Mathmatics SocietyDepartment of Applied Mathematics, Beijing Institute of Technology, Beijing
Mei HUANG Jian Hua SHEN Department of Mathematics and Physics Hunan First Normal College Hunan P R China College of Mathematics and Computer Science Hunan Normal University Hunan P R China
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Mei HUANG Jian Hua SHEN Department of Mathematics and Physics Hunan First Normal College Hunan P R China College of Mathematics and Computer Science Hunan Normal University Hunan P R China