Author page

Donal O'Regan

26 articles

Showing 1-25 of 26

→
Article Title Journal Published
OaM-15-98 Erratum to "A surjectivity problem for 3 by 3 matrices, Operator and Matrices, 13, no. 1, (2019) 111–119"
Constantin Buşe, Donal O'Regan, Olivia Saierli
OaM
Operators and Matrices
 Volume 15, Issue 4
12/2021
DEA-13-01 Unique solvability of fractional quadratic nonlinear integral equations
Mohamed Abdalla Darwish, Mohamed M. A. Metwali, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 13, Issue 1
02/2021
OaM-13-07 A surjectivity problem for 3 by 3 matrices
Constantin Buşe, Donal O'Regan, Olivia Saierli
OaM
Operators and Matrices
 Volume 13, Issue 1
03/2019
DEA-11-05 Razumikhin method to delay differential equations with non-instantaneous impulses
Ravi P. Agarwal, Snezhana G. Hristova, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 11, Issue 1
02/2019
DEA-09-32 Positive solutions for a class of fractional difference boundary value problems
Jiafa Xu, Donal O'Regan, Chengmin Hou, Yujun Cui
DEA
Differential Equations & Applications
 Volume 9, Issue 4
11/2017
DEA-09-29 Practical stability of differential equations with non-instantaneous impulses
Ravi P. Agarwal, Snezhana G. Hristova, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 9, Issue 4
11/2017
MIA-20-65 New Hilbert dynamic inequalities on time scales
Samir H. Saker, A. M. Ahmed, H. M. Rezk, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 20, Issue 4
10/2017
DEA-09-08 Minimization principle in ordered Banach spaces and application via Ekeland's variational principle
Amina Boucenna, Mabrouk Briki, Toufik Moussaoui, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 9, Issue 1
02/2017
DEA-08-21 Existence of solutions for an elliptic boundary value problem via a global minimization theorem on Hilbert spaces
Souad Ayadi, Toufik Moussaoui, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 8, Issue 3
08/2016
DEA-08-04 Practical Stability of Caputo fractional differential equations by Lyapunov functions
Ravi P. Agarwal, Snezhana G. Hristova, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 8, Issue 1
02/2016
MIA-19-03 New multiplicative higher order dynamic inequalities of Opial type
Safi S. Rabie, Samir H. Saker, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 19, Issue 1
01/2016
MIA-18-91 Some new Opial dynamic inequalities with weighted functions on time scales
Samir H. Saker, M. M. Osman, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 18, Issue 3
07/2015
DEA-07-02 Evolution equations with causal operators
Ravi P. Agarwal, Sadia Arshad, Vasile Lupulescu, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 7, Issue 1
02/2015
MIA-18-18 Converses of Copson's inequalities on time scales
Samir H. Saker, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 18, Issue 1
01/2015
MIA-17-89 Some dynamic inequalities of Hardy type on time scales
Samir H. Saker, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 17, Issue 3
07/2014
MIA-17-35 Higher order dynamic inequalities on time scales
Samir H. Saker, Ravi P. Agarwal, Donal O'Regan
MIA
Mathematical Inequalities & Applications
 Volume 17, Issue 2
04/2014
DEA-06-01 Positive solutions for singular nonlocal boundary value problems involving nonlinear integral conditions
Baoqiang Yan, Donal O'Regan, Ravi P. Agarwal
DEA
Differential Equations & Applications
 Volume 6, Issue 1
02/2014
MIA-14-18 Philos type criteria for second-order half-linear dynamic equations
Said R. Grace, Ravi P. Agarwal, Martin J. Bohner, Donal O'Regan
MIA
Mathematical Inequalities & Applications
 Volume 14, Issue 1
01/2011
MIA-13-10 Farkas-Type results for general composed convex optimization problems with inequality constraints
Xian-Jun Long, Nan-jing Huang, Donal O'Regan
MIA
Mathematical Inequalities & Applications
 Volume 13, Issue 1
01/2010
DEA-01-03 Existence results for Semilinear Neutral Functional Differential Inclusions with Nonlocal Conditions
Sotiris K. Ntouyas, Donal O'Regan
DEA
Differential Equations & Applications
 Volume 1, Issue 1
02/2009
MIA-11-05 An approximation approach to eigenvalue intervals for singular boundary value problems with sign changing nonlinearities
Haishen Lü, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 11, Issue 1
01/2008
MIA-08-08 Multiple Positive Solutions of Fourth-order Boundary Value Problems
Xiaojie Xu, Daqing Jiang, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 8, Issue 1
01/2005
MIA-07-53 Positive solutions for continuous and discrete boundary value problems to the one-dimension p-laplacian
Daqing Jiang, Jifeng Chu, Donal O'Regan, Ravi P. Agarwal
MIA
Mathematical Inequalities & Applications
 Volume 7, Issue 4
10/2004
MIA-06-44 Anti-periodic boundary value problem for nonlinear first order ordinary differential equations
Daniel Franco, Juan J. Nieto, Donal O'Regan
MIA
Mathematical Inequalities & Applications
 Volume 6, Issue 3
07/2003
MIA-06-13 Nonlinear generalized quasi-variational inequalities: a fixed point approach
Ravi P. Agarwal, Donal O'Regan
MIA
Mathematical Inequalities & Applications
 Volume 6, Issue 1
01/2003