TAILIEUCHUNG - Hindawi Publishing Corporation Advances in Difference Equations Volume 2010, Article ID 185701, 14

Hindawi Publishing Corporation Advances in Difference Equations Volume 2010, Article ID 185701, 14 pages doi: Research Article Positive Solutions for Impulsive Equations of Third Order in Banach Space Jingjing Cai Department of Mathematics, Tongji University, Shanghai 200092, China Correspondence should be addressed to Jingjing Cai, cjjing1983@ Received 4 September 2010; Accepted 30 November 2010 Academic Editor: John Graef Copyright q 2010 Jingjing Cai. 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. Using the fixed-point theorem, this paper is devoted to study. | Hindawi Publishing Corporation Advances in Difference Equations Volume 2010 Article ID 185701 14 pages doi 2010 185701 Research Article Positive Solutions for Impulsive Equations of Third Order in Banach Space Jingjing Cai Department of Mathematics Tongji University Shanghai 200092 China Correspondence should be addressed to Jingjing Cai cjjing1983@ Received 4 September 2010 Accepted 30 November 2010 Academic Editor John Graef Copyright 2010 Jingjing Cai. 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. Using the fixed-point theorem this paper is devoted to study the multiple and single positive solutions of third-order boundary value problems for impulsive differential equations in ordered Banach spaces. The arguments are based on a specially constructed cone. At last an example is given to illustrate the main results. 1. Introduction The purpose of this paper is to establish the existence of positive solutions for the following third-order three-point boundary value problems BVP for short in Banach space E -x t ff t x t y t -y h pf2 t x t y t kx ftk -I1 k x tk by tk x 0 x 0 0 x 1 - ax hi 6 t e 0 1 t1 t2 . tm t e 0 1 t1 t2 . tm -Ii k y tk k 1 2 . m y y 0 y 1 - ay hi 0 where fi e C 0 1 X P X P P Iị k e C P P i 1 2 k 1 2 . m. ầx tk x ì- - x t- ày ftk y tk - y tk y 0 0. 0 is the zero element of E. Recently third-order boundary value problems cf. 1-9 have attracted many authors attention due to their wide range of applications in applied mathematics physics and engineering especially in the bridge issue. To our knowledge most papers in literature 2 Advances in Difference Equations concern mainly about the existence of positive solutions for the cases in which the spaces are real and the equations have no parameters. And many authors consider nonlinear term have same linearity. In this paper

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