【摘要】 考虑非自治Ｌｏｇｉｓｔｉｃ模型△ｘｎ ＝ ｐｎｘｎ（１ － ｘｎ－ ｋｎλ），　　ｎ ＝ ０，１，…， （１）其中｛ｐｎ｝ｎ０为非负实数列，｛ｋｎ｝ｎ０为非负整数列且ｌｉｍｎ→∞（ｎ－ ｋｎ）＝ ∞，ｌｉｍ ｓｕｐｎ→∞ ｋｎ＝ ∞，λ为正常数．我们获得了方程（１）的平衡点λ全局吸引的新的充分条件，改进了文［５］的相应结果．更多还原

【Abstract】 Consider the nonautonomous logistic model△x n=p nx n(1-x n-k n λ), n=0,1,…,(1)where {p n} n0 is a sequence of nonnegative real numbers, {k n} is a sequence of nonnegative integers satisfying lim n→∞ (n-k n)=∞ ,lim sup n→∞ k n=∞ ,and λ is a positive constant.We obtain new sufficient conditions for the global attractivity of the equilibrium λ of Eq.(1),which improve some recent results established in [5].更多还原