【摘要】 考虑非线性时滞差分方程xn+1=xnexp[rn（1-xn-k）]n=0,1,2,…;x-k,…,x-1≥0,x0>0其中|rn|是非负实数列,k是正整数,本文获得了方程的每个正解关于正平衡点振动的充分条件.更多还原

【Abstract】 Consider the nonlinear delay difference equationxn +1=xnexp[rn(1-xn-k)] n=0,1,2,…;x-k,…, x-1≥0,x0>0 where |rn\ is a sequence of nonnegative real numbers and k is a positive integer. We obtain respectively sufficient conditions for all solutions of Eq(1) to oscillate.更多还原