Xianhua Tang, Jianhua Shen (2000)
Colloquium Mathematicae
Similarity:
New oscillation criteria are obtained for all solutions of a class of first order nonlinear delay differential equations. Our results extend and improve the results recently obtained by Li and Kuang [7]. Some examples are given to demonstrate the advantage of our results over those in [7].
Rudolf Olach, Helena Šamajová (2005)
Open Mathematics
Similarity:
Sufficient conditions which guarantee that certain linear integro-differential equation cannot have a positive solution are established.
Said R. Grace, Mustafa R. S. Kulenović, Hamdy El-Metwally (2002)
Czechoslovak Mathematical Journal
Similarity:
We obtain some sufficient conditions for the existence of the solutions and the asymptotic behavior of both linear and nonlinear system of differential equations with continuous coefficients and piecewise constant argument.
Liu, Xi-Lan, Zhang, Guang, Cheng, Sui Sun (2004)
Abstract and Applied Analysis
Similarity:
Wang, Gen-Qiang, Cheng, Sui Sun (2009)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Cheng-Jun Guo, Gen Qiang Wang, Sui-Sun Cheng (2006)
Archivum Mathematicum
Similarity:
By means of the Krasnoselskii fixed piont theorem, periodic solutions are found for a neutral type delay differential system of the form
Čermák, Jan (2000)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
Similarity:
Ashyralyev, Allaberen, Misirli, Emine, Mogol, Ozlem (2010)
Journal of Inequalities and Applications [electronic only]
Similarity:
Šmarda, Zdeněk (2010)
Advances in Difference Equations [electronic only]
Similarity: