کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
839059 908381 2006 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Average conditions for permanence and extinction in nonautonomous Gilpin–Ayala competition model
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Average conditions for permanence and extinction in nonautonomous Gilpin–Ayala competition model
چکیده انگلیسی

In this paper, we consider a general nonautonomous n  -species Gilpin–Ayala competitive system, which is more general and more realistic than classical Lotka–Volterra competition model. By means of Ahmad and Lazer's definitions of lower and upper averages of a function, we first give the average conditions for the permanence and global attractivity of the system. Next, for each r⩽nr⩽n the average conditions on the coefficients are provided to guarantee that r   of the species in the system are permanent while the remaining n-rn-r species are driven to extinction. Examples show the feasibility of the main results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nonlinear Analysis: Real World Applications - Volume 7, Issue 4, September 2006, Pages 895–915
نویسندگان
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