Browsing by Author "O’Regan, D"
Now showing items 1-5 of 5
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A general class of noninstantaneous impulsive fractional differential inclusions in banach spaces
Wang, JinRong; Ibrahim, AG; O’Regan, D; Zhou, Yong (Springer Nature, 2017-09-15)In this paper we introduce the concept of a PC-mild solution to a general new class of noninstantaneous impulsive fractional differential inclusions involving the generalized Caputo derivative with the lower bound at zero ... -
Distributions of zeros of solutions to first order delay dynamic equations
O’Regan, D; Saker, SH; Elshenhab, AM; Agarwal, RP (Springer Nature, 2017-07-26)This paper is concerned with the distributions of zeros of solutions to first order delay dynamic equations on time scales. The results are obtained using iterative sequences. -
Local stable manifold of langevin differential equations with two fractional derivatives
Wang, JinRong; Peng, Shan; O’Regan, D (Springer Nature, 2017-10-18)In this paper, we investigate the existence of local center stable manifolds of Langevin differential equations with two Caputo fractional derivatives in the two-dimensional case. We adopt the idea of the existence of a ... -
New gaps between zeros of fourth-order differential equations via opial inequalities
Saker, SH; Agarwal, RP; O’Regan, D (Springer Nature, 2012-01-01)In this paper, for a fourth-order differential equation, we will establish some lower bounds for the distance between zeros of a nontrivial solution and also lower bounds for the distance between zeros of a solution and/or ... -
Positive solutions for a sixth-order boundary value problem with four parameters
Agarwal, Ravi P; Kovacs, B; O’Regan, D (Springer Nature, 2013-01-01)This paper investigates the existence and multiplicity of positive solutions of a sixth-order differential system with four variable parameters using a monotone iterative technique and an operator spectral theorem.