Global Structure of Positive Solutions of a Discrete Problem with Sign-Changing Weight

被引：4
|
作者：
Ma, Ruyun [1 ]
Gao, Chenghua [1 ]
Han, Xiaoling [1 ]
Chen, Xiaoqiang [2 ]
机构：
[1] NW Normal Univ, Dept Math, Lanzhou 730070, Peoples R China
[2] Lanzhou Jiaotong Univ, Sch Automat & Elect Engn, Lanzhou 730070, Peoples R China
来源：
DISCRETE DYNAMICS IN NATURE AND SOCIETY | 2011年 / 2011卷
关键词：
BOUNDARY-VALUE-PROBLEMS; INDEFINITE WEIGHT; EXISTENCE;
D O I：
10.1155/2011/624157
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Let T > 5 be an integer, T = {1, 2, ... , T}. We are concerned with the global structure of positive solutions set of the discrete second-order boundary value problems Delta(2)u(t - 1) + rm(t)f(u(t)) = 0, t is an element of T, u(0) = u(T + 1) = 0, where r is an element of R is a parameter, m : T -> R changes its sign and m(t) not equal 0 for t is an element of T.
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页数：12
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