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Existence criteria for positive solutions of a nonlinear difference inequality

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Cheng S. S., Zhang G.

Annales Polonici Mathematici

2000

tom 73

nr 3

197-220

This paper is concerned with a class of nonlinear difference inequalities which include many different classes of difference inequalities and equations as special cases. By means of a Riccati type transformation, necessary and sufficient conditions for the existence of eventually positive solutions and positive nonincreasing solutions are obtained. Various type of comparison theorems are also derived as applications, which extends many theorems in the literature.

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1 Annales Polonici Mathematici

1 Cheng S. S.

1 Zhang G.

1 2000

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Existence criteria for positive solutions of a nonlinear difference inequality