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Asymptotic Behavior Of Solutions Of Periodic Competition Diffusion System With Depositings

Posted on:2003-12-23Degree:MasterType:Thesis
Country:ChinaCandidate:C Z LiFull Text:PDF
GTID:2120360065461274Subject:Basic mathematics
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In this paper, we study the asymptotic behavior of the solution of periodic competition diffusion system with depositingswith the initial conditionsby using upper-lower-solution method and the basic parabolic estimates and the parabolic maximum principle, where ? is a smooth bounded region in h, k are all positive constants, are all functions in space satisfyingthat Our main results are stated as follows:(i) If DI, D2, a, b, c, d, e, /are all positive constants, then there exists a unique positive constant equilibrium solution (u , v) of system (1) (2), and for arbitrarilly given initial functions p(x), y/(x) satisfying the above conditions the unique solution (u(x, f), v(jc, /)) of problem (1)-(3) satisfies thatuniformly with respect to x in fi.(ii) If D 2, a, b, c, c/, e, /which belong to space are all strictly positive and 7-periodic in on then there exist two strictly positiveT- periodic solutions of system (1^ (2) denoted by and t)), and for arbitrarilly given initial functions satisfying the above conditions the unique solution (u(x, 1), v(x, ) of problem (1)-(3) satisfies that for given there exists such that when,uniformly with respect to x in.(iii) If are stated as in section (ii) and a, b, c, d, e,/which belong to space are all strictly positive and asymptotically 7- periodic in, then thereexist two strictly positive T- periodic solutions of the limit system of system (1) (2) which are denoted by and , and for arbitrarilly given initial functions satisfying the above conditions the unique solution of problem (l)-(3) satisfies that for given there exists such that when .uniformly with respect to x in .The results in this paper may be viewed as the extention of the main results of [3, 4, 5, 6].
Keywords/Search Tags:periodic competition diffusion system, asymptotic behavior of solution, upper and lower solutions, positive constant equilibrium solution, bootstrap technique, strictly positive T-periodic solution
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