一类非线性差分方程正解的不存在性

NONEXISTENCE OF POSITIVE SOLUTION OF A CLASS OF NONLINEAR DIFFERENCE EQUATION

本文研究一类非线性差分方程及其对偶方程，给出了方程不存在正解的充分条件．所得结论改进了［１］的结果．

In this paper, a class of nonlinear difference equation and its dual equation is investigated. The sufficient conditions for the nonexistence of positive solution of the equations are obtained. The conclusions in this paper improve the results in [1].