NONEXISTENCE AND EXISTENCE OF POSITIVE SOLUTIONS FOR DIFFERENCE-EQUATIONS WITH UNBOUNDED DELAY

Authors
ZHANG BG TIAN CJ
Citation
Bg. Zhang et Cj. Tian, NONEXISTENCE AND EXISTENCE OF POSITIVE SOLUTIONS FOR DIFFERENCE-EQUATIONS WITH UNBOUNDED DELAY, Computers & mathematics with applications (1987), 36(1), 1998, pp. 1-8
Citations number
10
Categorie Soggetti
Mathematics,"Computer Science Interdisciplinary Applications",Mathematics,"Computer Science Interdisciplinary Applications
Journal title
Computers & mathematics with applications (1987) → ACNP
ISSN journal
08981221
Volume
36
Issue
1
Year of publication
1998
Pages
1 - 8
Database
ISI
SICI code
0898-1221(1998)36:1<1:NAEOPS>2.0.ZU;2-3
Abstract
Consider the delay difference equation x(n+1) - x(n) + p(n)x(r(n)) = 0 , n = 0, 1, 2,..., where tau : N --> Z, tau(n) < n for n is an element of N and lim(n-->infinity) tau(n) = infinity, {p(n)} is an element of R. Some existence results of positive solutions and oscillation crite ria for this equation are obtained. (C) 1998 Elsevier Science Ltd. All rights reserved.