ArticleOriginal scientific text
Title
Linearized comparison criteria for a nonlinear neutral differential equation
Authors 1, 2
Affiliations
- Department of Mathematics, Northeast Heavy Machinery Institute, Qiqihar, Heilongjiang, 161042 P.R. China
- Department of Mathematics, Tsing Hua University, Hsinchu, Taiwan, 30043 R.O.C.
Abstract
A class of nonlinear neutral differential equations with variable coefficients and delays is considered. Conditions for the existence of eventually positive solutions are obtained which extend some of the criteria existing in the literature. In particular, a linearized comparison theorem is obtained which establishes a connection between our nonlinear equations and a class of linear neutral equations with constant coefficients.
Keywords
neutral differential equations, positive solutions, linearized comparison theorems
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