tailieunhanh - Báo cáo hóa học: " Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales | Hindawi Publishing Corporation Advances in Difference Equations Volume 2011 Article ID 237219 14 pages doi 2011 237219 Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales Taixiang Sun 1 Hongjian Xi 2 and Xiaofeng Peng1 1 College of Mathematics and Information Science Guangxi University Nanning Guangxi 530004 China 2 Department of Mathematics Guangxi College of Finance and Economics Nanning Guangxi 530003 China Correspondence should be addressed to Taixiang Sun stx1963@ Received 18 November 2010 Accepted 23 February 2011 Academic Editor Abdelkader Boucherif Copyright 2011 Taixiang Sun et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. We investigate the asymptotic behavior of solutions of the following higher-order dynamic equation xA t f t x t xÁ t . xÁ 1 t 0 on an arbitrary time scale T where the function f is defined on T X Rn. We give sufficient conditions under which every solution x of this equation satisfies one of the following conditions 1 limt TOxAn 1 t 0 2 there exist constants a 0 i n - 1 with a0 f 0 such that limt TOx t 2n -01 a hn-i- 1 t t0 1 where hft t0 0 i n - 1 are as in Main Results. 1. Introduction In this paper we investigate the asymptotic behavior of solutions of the following higher-order dynamic equation xầ t f t x f x f . . . xầ 1 t 0 on an arbitrary time scale T where the function f is defined on T X Rn. Since we are interested in the asymptotic and oscillatory behavior of solutions near infinity we assume that sup T TO and define the time scale interval to to t t e T t t0 where t0 e T. By a solution of we mean a nontrivial real-valued function x e Crd Tx to t R Tx t0 which has the property that x n t e Crd Tx to t R and satisfies on Tx to t where Crd is the space of rd-continuous functions. The .

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