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Donal O'Regan
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- affiliation: National University of Ireland, School of Mathematics, Statistics and Applied Mathematics, Galway, Ireland
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2020 – today
- 2024
- [j183]Donal O'Regan
, Safoura Rezaei Aderyani
, Reza Saadati
, Tofigh Allahviranloo
:
Solving the Fornberg-Whitham Model Derived from Gilson-Pickering Equations by Analytical Methods. Axioms 13(2): 74 (2024) - [j182]Donal O'Regan
, Safoura Rezaei Aderyani
, Reza Saadati
, Mustafa Inç
:
Soliton Solution of the Nonlinear Time Fractional Equations: Comprehensive Methods to Solve Physical Models. Axioms 13(2): 92 (2024) - [j181]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan
:
Cohen-Grossberg Neural Network Delay Models with Fractional Derivatives with Respect to Another Function - Theoretical Bounds of the Solutions. Axioms 13(9): 605 (2024) - 2023
- [j180]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan
:
Boundary Value Problems for Fractional Differential Equations of Caputo Type and Ulam Type Stability: Basic Concepts and Study. Axioms 12(3): 226 (2023) - [j179]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan
:
Mittag-Leffler-Type Stability of BAM Neural Networks Modeled by the Generalized Proportional Riemann-Liouville Fractional Derivative. Axioms 12(6): 588 (2023) - [j178]Zhiwei Lv, Chun Wu, Donal O'Regan, Jiafa Xu
:
Solvability of a Boundary Value Problem Involving Fractional Difference Equations. Axioms 12(7): 650 (2023) - [j177]Mengmeng Li, Jin Rong Wang, Donal O'Regan:
Stability of non-instantaneous impulsive systems in Hilbert spaces. Commun. Nonlinear Sci. Numer. Simul. 122: 107237 (2023) - [j176]Chuangliang Zhang, Nan-jing Huang, Donal O'Regan:
Stability of solutions for fuzzy set optimization problems with applications. Fuzzy Sets Syst. 466: 108470 (2023) - [j175]Donal O'Regan:
A note on noncompact collectively coincidence point theory. Period. Math. Hung. 87(2): 293-302 (2023) - [j174]Donal O'Regan
, Safoura Rezaei Aderyani
, Reza Saadati
, Chenkuan Li
:
Stability Results and Parametric Delayed Mittag-Leffler Matrices in Symmetric Fuzzy-Random Spaces with Application. Symmetry 15(10): 1880 (2023) - 2022
- [j173]Azam Ahadi, Zahra Eidinejad, Reza Saadati
, Donal O'Regan
:
Modular Stability Analysis of a Nonlinear Stochastic Fractional Volterra IDE. Algorithms 15(12): 459 (2022) - [j172]Mei Luo, Michal Feckan
, Jin-Rong Wang
, Donal O'Regan:
g-Expectation for Conformable Backward Stochastic Differential Equations. Axioms 11(2): 75 (2022) - [j171]Rui Liu, Michal Feckan
, Donal O'Regan
, Jinrong Wang
:
Controllability Results for First Order Impulsive Fuzzy Differential Systems. Axioms 11(9): 471 (2022) - [j170]Martin Bohner, Vasile Lupulescu
, Donal O'Regan, Waqas Ali Azhar:
Vector-valued functions on time scales and random differential equations. Comput. Appl. Math. 41(4) (2022) - [j169]Ricardo Almeida
, Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Stability of Gene Regulatory Networks Modeled by Generalized Proportional Caputo Fractional Differential Equations. Entropy 24(3): 372 (2022) - [j168]Vo Minh Tam
, Nguyen Van Hung
, Donal O'Regan:
An existence result for a new class of fuzzy fractional differential inclusions with Clarke's subdifferential via resolvent operators in Banach spaces. Fuzzy Sets Syst. 443(Part): 221-240 (2022) - [j167]Rui Liu, Michal Feckan
, Jinrong Wang
, Donal O'Regan:
Ulam type stability for first-order linear and nonlinear impulsive fuzzy differential equations. Int. J. Comput. Math. 99(6): 1281-1303 (2022) - [j166]Mostafa Ghadampour, Ebrahim Soori
, Ravi P. Agarwal, Donal O'Regan:
A Strong Convergence Theorem for Solving an Equilibrium Problem and a Fixed Point Problem Using the Bregman Distance. J. Optim. Theory Appl. 195(3): 854-877 (2022) - [j165]Reza Saadati
, Tofigh Allahviranloo
, Donal O'Regan
, Fehaid Salem Alshammari
:
Fuzzy Control Problem via Random Multi-Valued Equations in Symmetric F-n-NLS. Symmetry 14(9): 1778 (2022) - [j164]Soubhagya Kumar Sahoo
, Pshtiwan Othman Mohammed
, Donal O'Regan
, Muhammad Tariq
, Kamsing Nonlaopon
:
New Hermite-Hadamard Type Inequalities in Connection with Interval-Valued Generalized Harmonically (h1, h2)-Godunova-Levin Functions. Symmetry 14(10): 1964 (2022) - [j163]Zahra Eidinejad
, Reza Saadati
, Donal O'Regan
, Fehaid Salem Alshammari
:
Minimum Superstability of Stochastic Ternary Antiderivations in Symmetric Matrix-Valued FB-Algebras and Symmetric Matrix-Valued FC-⋄-Algebras. Symmetry 14(10): 2064 (2022) - [j162]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan
:
Mittag-Leffler Type Stability of Delay Generalized Proportional Caputo Fractional Differential Equations: Cases of Non-Instantaneous Impulses, Instantaneous Impulses and without Impulses. Symmetry 14(11): 2290 (2022) - [j161]Wuyang Wang, Jun Ye, Jiafa Xu
, Donal O'Regan
:
Positive Solutions for a High-Order Riemann-Liouville Type Fractional Integral Boundary Value Problem Involving Fractional Derivatives. Symmetry 14(11): 2320 (2022) - 2021
- [j160]Ricardo Almeida
, Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Quadratic Lyapunov Functions for Stability of the Generalized Proportional Fractional Differential Equations with Applications to Neural Networks. Axioms 10(4): 322 (2021) - [j159]Vasile Lupulescu
, Donal O'Regan:
A new derivative concept for set-valued and fuzzy-valued functions. Differential and integral calculus in quasilinear metric spaces. Fuzzy Sets Syst. 404: 75-110 (2021) - [j158]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Lyapunov Functions and Lipschitz Stability for Riemann-Liouville Non-Instantaneous Impulsive Fractional Differential Equations. Symmetry 13(4): 730 (2021) - [j157]Donal O'Regan:
Coincidence Theory in the Coercive Case and Minimax Inequalities. Symmetry 13(7): 1220 (2021) - [j156]Donal O'Regan:
Maximal Type Elements for Families. Symmetry 13(12): 2269 (2021) - 2020
- [j155]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan, Kremena Stefanova:
Iterative Algorithm for Solving Scalar Fractional Differential Equations with Riemann-Liouville Derivative and Supremum. Algorithms 13(8): 184 (2020) - [j154]Bao Ngoc Tran
, Yong Zhou, Donal O'Regan, Nguyen Huy Tuan
:
On a terminal value problem for pseudoparabolic equations involving Riemann-Liouville fractional derivatives. Appl. Math. Lett. 106: 106373 (2020) - [j153]Donal O'Regan:
Coincidence Continuation Theory for Multivalued Maps with Selections in a Given Class. Axioms 9(2): 37 (2020) - [j152]Nguyen Van Hung
, Vo Minh Tam
, Donal O'Regan:
Existence of solutions for a new class of fuzzy differential inclusions with resolvent operators in Banach spaces. Comput. Appl. Math. 39(2) (2020) - [j151]Nguyen Anh Triet, Duc Phuong Nguyen
, Donal O'Regan, Nguyen Huy Tuan
:
Approximate solution of the backward problem for Kirchhoff's model of Parabolic type with discrete random noise. Comput. Math. Appl. 80(3): 453-470 (2020) - [j150]Nguyen Huy Tuan
, Bao Ngoc Tran
, Dumitru Baleanu
, Donal O'Regan:
On well-posedness of the sub-diffusion equation with conformable derivative model. Commun. Nonlinear Sci. Numer. Simul. 89: 105332 (2020) - [j149]Vu Ho
, Donal O'Regan, Ngo Van Hoa
:
Two-Parameter Regularization Method for a Nonlinear Backward Heat Problem with a Conformable Derivative. Complex. 2020: 4143930:1-4143930:15 (2020) - [j148]Youzheng Ding, Jiqiang Jiang
, Donal O'Regan, Jiafa Xu
:
Positive Solutions for a System of Hadamard-Type Fractional Differential Equations with Semipositone Nonlinearities. Complex. 2020: 9742418:1-9742418:14 (2020) - [j147]Rui Liu, JinRong Wang
, Donal O'Regan:
On the solutions of first-order linear impulsive fuzzy differential equations. Fuzzy Sets Syst. 400: 1-33 (2020) - [j146]Rui Liu, JinRong Wang
, Donal O'Regan:
Ulam type stability of first-order linear impulsive fuzzy differential equations. Fuzzy Sets Syst. 400: 34-89 (2020) - [j145]Nguyen Van Hung
, Vo Minh Tam
, Nguyen Huy Tuan, Donal O'Regan:
Regularized gap functions and error bounds for generalized mixed weak vector quasivariational inequality problems in fuzzy environments. Fuzzy Sets Syst. 400: 162-176 (2020) - [j144]Donal O'Regan, Ngo Van Hoa:
An Initial Value Problem Involving Caputo-Hadamard Fractional Derivative: The Extremal Solutions and Stabilization. J. Adv. Eng. Comput. 4(2): 149-161 (2020) - [j143]Nguyen Van Hung
, Vo Minh Tam
, Nguyen Huy Tuan
, Donal O'Regan:
Convergence analysis of solution sets for fuzzy optimization problems. J. Comput. Appl. Math. 369 (2020) - [j142]Nguyen Van Hung
, Vo Minh Tam
, Donal O'Regan, Yeol Je Cho:
A new class of generalized multiobjective games in bounded rationality with fuzzy mappings: Structural (λ, ε)-stability and (λ, ε)-robustness to ε-equilibria. J. Comput. Appl. Math. 372: 112735 (2020) - [j141]Nguyen Huy Tuan
, Dumitru Baleanu
, Tran Ngoc Thach, Donal O'Regan, Nguyen Huu Can
:
Final value problem for nonlinear time fractional reaction-diffusion equation with discrete data. J. Comput. Appl. Math. 376: 112883 (2020) - [j140]Tahira Jabeen, Ravi P. Agarwal, Vasile Lupulescu
, Donal O'Regan:
Impulsive Evolution Equations with Causal Operators. Symmetry 12(1): 48 (2020)
2010 – 2019
- 2019
- [j139]Shengda Liu
, JinRong Wang
, Dong Shen
, Donal O'Regan:
Iterative learning control for differential inclusions of parabolic type with noninstantaneous impulses. Appl. Math. Comput. 350: 48-59 (2019) - [j138]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Lipschitz Stability for Non-Instantaneous Impulsive Caputo Fractional Differential Equations with State Dependent Delays. Axioms 8(1): 4 (2019) - [j137]Peng Yang, JinRong Wang
, Donal O'Regan, Michal Feckan
:
Inertial manifold for semi-linear non-instantaneous impulsive parabolic equations in an admissible space. Commun. Nonlinear Sci. Numer. Simul. 75: 174-191 (2019) - [j136]Bao Ngoc Tran
, Nguyen Huy Tuan
, Donal O'Regan:
Existence and uniqueness of mild solutions for a final value problem for nonlinear fractional diffusion systems. Commun. Nonlinear Sci. Numer. Simul. 78: 104882 (2019) - [j135]Chao Wang
, Ravi P. Agarwal
, Donal O'Regan:
Calculus of fuzzy vector-valued functions and almost periodic fuzzy vector-valued functions on time scales. Fuzzy Sets Syst. 375: 1-52 (2019) - [j134]Xianghu Liu, JinRong Wang
, Donal O'Regan:
On the approximate controllability for fractional evolution inclusions of Sobolev and Clarke subdifferential type. IMA J. Math. Control. Inf. 36(1): 1-17 (2019) - [j133]Constantin Buse, Donal O'Regan, Olivia Saierli:
Hyers-Ulam Stability for Linear Differences with Time Dependent and Periodic Coefficients: The Case When the Monodromy Matrix Has Simple Eigenvalues. Symmetry 11(3): 339 (2019) - [j132]Constantin Buse, Donal O'Regan, Olivia Saierli:
Hyers-Ulam Stability for Linear Differences with Time Dependent and Periodic Coefficients. Symmetry 11(4): 512 (2019) - [j131]Ravi P. Agarwal, Snezhana G. Hristova
, Donal O'Regan:
Basic Concepts of Riemann-Liouville Fractional Differential Equations with Non-Instantaneous Impulses. Symmetry 11(5): 614 (2019) - 2018
- [j130]Dan Yang, JinRong Wang
, Donal O'Regan:
A class of nonlinear non-instantaneous impulsive differential equations involving parameters and fractional order. Appl. Math. Comput. 321: 654-671 (2018) - [j129]Li Zu, Daqing Jiang, Donal O'Regan, Tasawar Hayat, Bashir Ahmad
:
Ergodic property of a Lotka-Volterra predator-prey model with white noise higher order perturbation under regime switching. Appl. Math. Comput. 330: 93-102 (2018) - [j128]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Iterative techniques for the initial value problem for Caputo fractional differential equations with non-instantaneous impulses. Appl. Math. Comput. 334: 407-421 (2018) - [j127]Donal O'Regan:
Coincidence for morphisms based on compactness conditions on countable sets. Appl. Math. Comput. 339: 59-62 (2018) - [j126]Chengbin Liang
, JinRong Wang
, Donal O'Regan:
Representation of a solution for a fractional linear system with pure delay. Appl. Math. Lett. 77: 72-78 (2018) - [j125]Eduardo Hernández Morales
, Donal O'Regan:
On state dependent non-local conditions. Appl. Math. Lett. 83: 103-109 (2018) - [j124]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Lyapunov Functions to Caputo Fractional Neural Networks with Time-Varying Delays. Axioms 7(2): 30 (2018) - [j123]Ngo Van Hoa, Vasile Lupulescu
, Donal O'Regan:
A note on initial value problems for fractional fuzzy differential equations. Fuzzy Sets Syst. 347: 54-69 (2018) - [j122]Ravi P. Agarwal
, Mircea Balaj, Donal O'Regan:
Intersection Theorems with Applications in Optimization. J. Optim. Theory Appl. 179(3): 761-777 (2018) - [j121]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Global Mittag - Leffler Synchronization for Neural Networks Modeled by Impulsive Caputo Fractional Differential Equations with Distributed Delays. Symmetry 10(10): 473 (2018) - [j120]Zhongli You, Jinrong Wang
, Donal O'Regan:
Asymptotic stability of solutions of impulsive multi-delay differential equations. Trans. Inst. Meas. Control 40(15): 4143-4152 (2018) - 2017
- [j119]Ravi P. Agarwal
, Donal O'Regan, Snezhana G. Hristova
:
Monotone iterative technique for the initial value problem for differential equations with non-instantaneous impulses. Appl. Math. Comput. 298: 45-56 (2017) - [j118]Ravi P. Agarwal
, Donal O'Regan, Snezhana G. Hristova
, Muhammed Çiçek:
Practical stability with respect to initial time difference for Caputo fractional differential equations. Commun. Nonlinear Sci. Numer. Simul. 42: 106-120 (2017) - [j117]Ngo Van Hoa
, Vasile Lupulescu
, Donal O'Regan:
Solving interval-valued fractional initial value problems under Caputo gH-fractional differentiability. Fuzzy Sets Syst. 309: 1-34 (2017) - [j116]Ravi P. Agarwal
, Snezhana G. Hristova
, Donal O'Regan:
Noninstantaneous impulses in Caputo fractional differential equations and practical stability via Lyapunov functions. J. Frankl. Inst. 354(7): 3097-3119 (2017) - [j115]Dan Yang, JinRong Wang
, Donal O'Regan:
Asymptotic properties of the solutions of nonlinear non-instantaneous impulsive differential equations. J. Frankl. Inst. 354(15): 6978-7011 (2017) - [j114]Ravi P. Agarwal
, Mircea Balaj, Donal O'Regan:
Common Fixed Point Theorems in Topological Vector Spaces via Intersection Theorems. J. Optim. Theory Appl. 173(2): 443-458 (2017) - 2016
- [j113]Liang Wang, Daqing Jiang, Donal O'Regan:
The periodic solutions of a stochastic chemostat model with periodic washout rate. Commun. Nonlinear Sci. Numer. Simul. 37: 1-13 (2016) - [j112]Xue-song Li, Nan-Jing Huang, Donal O'Regan:
A class of impulsive differential variational inequalities in finite dimensional spaces. J. Frankl. Inst. 353(13): 3151-3175 (2016) - [j111]R. Rakkiyappan, G. Velmurugan
, Xiaodi Li, Donal O'Regan:
Global dissipativity of memristor-based complex-valued neural networks with time-varying delays. Neural Comput. Appl. 27(3): 629-649 (2016) - 2015
- [j110]Dumitru Baleanu, Octavian G. Mustafa, Donal O'Regan:
A Kamenev-type oscillation result for a linear (1+α)-order fractional differential equation. Appl. Math. Comput. 259: 374-378 (2015) - [j109]Ravi P. Agarwal, Vasile Lupulescu
, Donal O'Regan, Ghaus ur Rahman
:
Fractional calculus and fractional differential equations in nonreflexive Banach spaces. Commun. Nonlinear Sci. Numer. Simul. 20(1): 59-73 (2015) - [j108]Li Zu, Daqing Jiang, Donal O'Regan:
Conditions for persistence and ergodicity of a stochastic Lotka-Volterra predator-prey model with regime switching. Commun. Nonlinear Sci. Numer. Simul. 29(Issues): 1-11 (2015) - [j107]Wei-bing Zhang, Nan-Jing Huang
, Donal O'Regan:
Generalized Well-Posedness for Symmetric Vector Quasi-Equilibrium Problems. J. Appl. Math. 2015: 108357:1-108357:10 (2015) - [j106]Youzheng Ding, Zhongli Wei, Jiafa Xu, Donal O'Regan:
Extremal solutions for nonlinear fractional boundary value problems with p-Laplacian. J. Comput. Appl. Math. 288: 151-158 (2015) - 2014
- [j105]Qiumei Zhang, Daqing Jiang, Zhenwen Liu, Donal O'Regan:
The long time behavior of a predator-prey model with disease in the prey by stochastic perturbation. Appl. Math. Comput. 245: 305-320 (2014) - [j104]Xiaoqing Yuan, Yong-Hui Xia, Donal O'Regan:
Nonautonomous impulsive systems with unbounded nonlinear terms. Appl. Math. Comput. 245: 391-403 (2014) - [j103]Jiafa Xu, Wei Dong, Donal O'Regan:
Existence of weak solutions for a fourth-order Navier boundary value problem. Appl. Math. Lett. 37: 61-66 (2014) - [j102]Jingfeng Tian
, Wen-Li Wang, Donal O'Regan:
Refinements of Generalized Hölder's Inequalities. J. Appl. Math. 2014: 274310:1-274310:9 (2014) - [j101]Sheng-lan Chen, Nan-Jing Huang, Donal O'Regan:
Geodesic B-Preinvex Functions and Multiobjective Optimization Problems on Riemannian Manifolds. J. Appl. Math. 2014: 524698:1-524698:12 (2014) - [j100]Xiaodi Li, Quanxin Zhu, Donal O'Regan:
pth Moment exponential stability of impulsive stochastic functional differential equations and application to control problems of NNs. J. Frankl. Inst. 351(9): 4435-4456 (2014) - [j99]Ravi P. Agarwal, Mircea Balaj, Donal O'Regan:
A Common Fixed Point Theorem with Applications. J. Optim. Theory Appl. 163(2): 482-490 (2014) - 2013
- [j98]Michelle Pierri
, Donal O'Regan, Vanessa Rolnik
:
Existence of solutions for semi-linear abstract differential equations with not instantaneous impulses. Appl. Math. Comput. 219(12): 6743-6749 (2013) - [j97]Cong Zhang, Nan-Jing Huang, Donal O'Regan:
Almost periodic solutions for a Volterra model with mutual interference and Holling type III functional response. Appl. Math. Comput. 225: 503-511 (2013) - [j96]Chengjun Guo, Donal O'Regan, Feiqi Deng
, Ravi P. Agarwal:
Fixed points and exponential stability for a stochastic neutral cellular neural network. Appl. Math. Lett. 26(8): 849-853 (2013) - [j95]Hui-qiang Ma, Nan-Jing Huang, Meng Wu
, Donal O'Regan:
A New Gap Function for Vector Variational Inequalities with an Application. J. Appl. Math. 2013: 423040:1-423040:8 (2013) - [j94]San-hua Wang, Nan-Jing Huang, Donal O'Regan:
Well-posedness for generalized quasi-variational inclusion problems and for optimization problems with constraints. J. Glob. Optim. 55(1): 189-208 (2013) - [j93]Eduardo Hernández Morales
, Donal O'Regan, Krishnan Balachandran:
Comments on Some Recent Results on Controllability of Abstract Differential Problems. J. Optim. Theory Appl. 159(1): 292-295 (2013) - [j92]Barnabás Bede, Donal O'Regan:
The theory of pseudo-linear operators. Knowl. Based Syst. 38: 19-26 (2013) - 2012
- [j91]Donal O'Regan, Aleksandra Orpel
:
A variational approach to the eigenvalue problem for higher order BVPs with singular nonlinearities. Appl. Math. Comput. 218(20): 10063-10071 (2012) - [j90]S. H. Saker
, Ravi P. Agarwal, Donal O'Regan:
Gaps between zeros of second-order half-linear differential equations. Appl. Math. Comput. 219(3): 875-885 (2012) - [j89]Donal O'Regan:
Coincidence theory for multimaps. Appl. Math. Comput. 219(4): 2026-2034 (2012) - [j88]Eduardo Hernández Morales
, Donal O'Regan, Maria Aparecida Bená:
On a new class of abstract integral equations and applications. Appl. Math. Comput. 219(4): 2271-2277 (2012) - [j87]Ravi P. Agarwal, Mircea Balaj, Donal O'Regan:
A Unifying Approach to Variational Relation Problems. J. Optim. Theory Appl. 155(2): 417-429 (2012) - [j86]Diwang Lin, Xiaodi Li, Donal O'Regan:
Stability analysis of generalized impulsive functional differential equations. Math. Comput. Model. 55(5-6): 1682-1690 (2012) - [j85]Zhilin Yang
, Donal O'Regan:
Positive solutions of a focal problem for one-dimensional p-Laplacian equations. Math. Comput. Model. 55(7-8): 1942-1950 (2012) - 2011
- [j84]Donal O'Regan:
Applications of linking to Hammerstein integral equations. Appl. Math. Comput. 217(12): 5279-5284 (2011) - [j83]Donal O'Regan, Aleksandra Orpel
:
Eigenvalue intervals for higher order problems with singular nonlinearities. Appl. Math. Comput. 218(4): 1233-1239 (2011) - [j82]Yuqing Chen, Juan J. Nieto
, Donal O'Regan:
Anti-periodic solutions for evolution equations associated with maximal monotone mappings. Appl. Math. Lett. 24(3): 302-307 (2011) - [j81]Choonkil Park, Donal O'Regan, Reza Saadati
:
Stability of some set-valued functional equations. Appl. Math. Lett. 24(11): 1910-1914 (2011) - [j80]Gabriele Bonanno, Beatrice Di Bella
, Donal O'Regan:
Non-trivial solutions for nonlinear fourth-order elastic beam equations. Comput. Math. Appl. 62(4): 1862-1869 (2011) - [j79]Mohamed A. El-Gebeily
, Donal O'Regan, Ravi P. Agarwal:
Characterization of self-adjoint ordinary differential operators. Math. Comput. Model. 54(1-2): 659-672 (2011) - 2010
- [j78]Donal O'Regan:
Essential extension type maps for general classes of maps. Appl. Math. Comput. 216(11): 3391-3395 (2010) - [j77]Mohamed A. El-Gebeily
, Donal O'Regan, Salim Messauodi:
Type I operators and the approximation of singular two-point boundary value problems. Appl. Math. Comput. 216(12): 3433-3438 (2010) - [j76]Ravi P. Agarwal, Donal O'Regan, Sandra Pinelas
:
Bounds for analytic solutions to integral equations in the complex domain. Appl. Math. Lett. 23(8): 847-851 (2010) - [j75]Yuqing Chen, Donal O'Regan, Ravi P. Agarwal:
Anti-periodic solutions for evolution equations associated with monotone type mappings. Appl. Math. Lett. 23(11): 1320-1325 (2010) - [j74]Ravi P. Agarwal, Donal O'Regan, Patricia J. Y. Wong
:
Periodic constant-sign solutions for systems of Hill's equations. Asymptot. Anal. 67(3-4): 191-216 (2010) - [j73]Xi Li, Nan-Jing Huang, Donal O'Regan:
Strong convergence theorems for relatively nonexpansive mappings in Banach spaces with applications. Comput. Math. Appl. 60(5): 1322-1331 (2010) - [j72]Mohamed A. El-Gebeily
, Donal O'Regan, Juan J. Nieto
:
A monotone iterative technique for stationary and time dependent problems in Banach spaces. J. Comput. Appl. Math. 233(9): 2395-2404 (2010) - [j71]Ravi P. Agarwal, Donal O'Regan, Veli B. Shakhmurov:
Uniform separable differential operators with parameters. J. Frankl. Inst. 347(1): 2-16 (2010) - [j70]Gabriele Bonanno, Giovanni Molica Bisci
, Donal O'Regan:
Infinitely many weak solutions for a class of quasilinear elliptic systems. Math. Comput. Model. 52(1-2): 152-160 (2010)
2000 – 2009
- 2009
- [j69]Yuqing Chen, Donal O'Regan:
On the homotopy property of topological degree for maximal monotone mappings. Appl. Math. Comput. 208(2): 373-377 (2009) - [j68]Ravi P. Agarwal, Donal O'Regan, Veli B. Shakhmurov:
B-Separable boundary value problems in Banach-valued function spaces. Appl. Math. Comput. 210(1): 48-63 (2009) - [j67]Yan Sun, Yeol Je Cho, Donal O'Regan:
Positive solutions for singular second order Neumann boundary value problems via a cone fixed point theorem. Appl. Math. Comput. 210(1): 80-86 (2009) - [j66]Fulong Wang, Yuqing Chen, Donal O'Regan:
Generalized degree for classes of finite dimensional upper hemi-continuous mappings in separable Banach spaces. Appl. Math. Comput. 211(1): 173-176 (2009) - [j65]Donal O'Regan:
The fixed point index for compact absorbing contractive admissible maps. Appl. Math. Comput. 215(5): 1975-1983 (2009) - [j64]Said R. Grace, Ravi P. Agarwal, Donal O'Regan:
A selection of oscillation criteria for second-order differential inclusions. Appl. Math. Lett. 22(2): 153-158 (2009) - [j63]Fulong Wang, Yuqing Chen, Donal O'Regan:
Degree theory for monotone type mappings in non-reflexive Banach spaces. Appl. Math. Lett. 22(2): 276-279 (2009) - [j62]Ali P. Farajzadeh
, A. Amini-Harandi, Donal O'Regan, Ravi P. Agarwal:
New kinds of generalized variational-like inequality problems in topological vector spaces. Appl. Math. Lett. 22(7): 1126-1129 (2009) - [j61]Ravi P. Agarwal, Donal O'Regan, Veli B. Shakhmurov:
Higher order nonlinear degenerate differential operator equations. Appl. Math. Lett. 22(10): 1556-1561 (2009) - [j60]Yuqing Chen, Donal O'Regan, Fulong Wang, Ravi P. Agarwal:
A note on the degree for maximal monotone mappings in finite dimensional spaces. Appl. Math. Lett. 22(11): 1766-1769 (2009) - [j59]Eduardo Hernández Morales
, Donal O'Regan:
Controllability of Volterra-Fredholm type systems in Banach spaces. J. Frankl. Inst. 346(2): 95-101 (2009) - [j58]Ravi P. Agarwal, Donal O'Regan, Patricia J. Y. Wong
:
Constant-sign solutions for systems of singular integral equations of Hammerstein type. Math. Comput. Model. 50(7-8): 999-1025 (2009) - 2008
- [j57]Donal O'Regan, Reza Saadati
:
Nonlinear contraction theorems in probabilistic spaces. Appl. Math. Comput. 195(1): 86-93 (2008) - [j56]Li Zu, Daqing Jiang, Donal O'Regan:
Existence theory for multiple solutions to semipositone Dirichlet boundary value problems with singular dependent nonlinearities for second-order impulsive differential equations. Appl. Math. Comput. 195(1): 240-255 (2008) - [j55]Ravi P. Agarwal, Donal O'Regan, S. H. Saker
:
Oscillation and global attractivity in a delay periodic host macroparasite model. Appl. Math. Comput. 196(1): 340-352 (2008) - [j54]Sinisa N. Jesic, Donal O'Regan, Natasa A. Babacev
:
A common fixed point theorem for R-weakly commuting mappings in probabilistic spaces with nonlinear contractive conditions. Appl. Math. Comput. 201(1-2): 272-281 (2008) - [j53]Fulong Wang, Yuqing Chen, Donal O'Regan:
Degree theory for (S+) mappings in non-reflexive banach spaces. Appl. Math. Comput. 202(1): 229-232 (2008) - [j52]Chengjun Yuan, Daqing Jiang, Donal O'Regan:
Existence and uniqueness of positive solutions for fourth-order nonlinear singular continuous and discrete boundary value problems. Appl. Math. Comput. 203(1): 194-201 (2008) - [j51]Donal O'Regan:
Singular integral equations arising in draining and coating flows. Appl. Math. Comput. 205(1): 438-441 (2008) - [j50]Richard Avery, Johnny Henderson
, Donal O'Regan:
Four functionals fixed point theorem. Math. Comput. Model. 48(7-8): 1081-1089 (2008) - 2007
- [j49]Donal O'Regan, Miroslawa Zima
:
Leggett-Williams norm-type fixed point theorems for multivalued mappings. Appl. Math. Comput. 187(2): 1238-1249 (2007) - [j48]Donal O'Regan, Ravi P. Agarwal, Kanishka Perera
:
Nonlinear integral equations singular in the dependent variable. Appl. Math. Lett. 20(11): 1137-1141 (2007) - [j47]Ravi P. Agarwal, Donal O'Regan:
Second order initial value problems of Lane-Emden type. Appl. Math. Lett. 20(12): 1198-1205 (2007) - [j46]Jinhai Chen, Donal O'Regan:
The periodic boundary value problem for semilinear elastic beam equations: The resonance case. Comput. Math. Appl. 53(8): 1284-1292 (2007) - [j45]Ravi P. Agarwal, Donal O'Regan, Christopher C. Tisdell
, Patricia J. Y. Wong
:
Constant-sign solutions of a system of Volterra integral equations. Comput. Math. Appl. 54(1): 58-75 (2007) - [j44]Ravi P. Agarwal, Donal O'Regan, Svatoslav Stanek:
Positive and dead core solutions of singular Dirichlet boundary value problems with phi-Laplacian. Comput. Math. Appl. 54(2): 255-266 (2007) - [j43]Xu Xian, Donal O'Regan, Jingxian Sun:
Multiplicity results for three-point boundary value problems with a non-well-ordered upper and lower solution condition. Math. Comput. Model. 45(1-2): 189-200 (2007) - [j42]Baoqiang Yan, Donal O'Regan, Ravi P. Agarwal:
Multiple positive solutions for singular problems with mixed boundary data and derivative dependence. Math. Comput. Model. 45(3-4): 404-430 (2007) - [j41]Yuqing Chen, Juan J. Nieto
, Donal O'Regan:
Anti-periodic solutions for fully nonlinear first-order differential equations. Math. Comput. Model. 46(9-10): 1183-1190 (2007) - 2006
- [j40]Hojatollah Adibi
, Yeol Je Cho, Donal O'Regan, Reza Saadati
:
Common fixed point theorems in S-fuzzy metric spaces. Appl. Math. Comput. 182(1): 820-828 (2006) - [j39]Donal O'Regan:
Leray-Schauder results for inward acyclic and approximable maps defined on Fréchet spaces. Appl. Math. Lett. 19(9): 976-982 (2006) - [j38]Ravi P. Agarwal, Donal O'Regan:
Leray-Schauder and Krasnoselskii results for multivalued maps defined on pseudo-open subsets of a Fréchet space. Appl. Math. Lett. 19(12): 1327-1334 (2006) - [j37]Ravi P. Agarwal, Donal O'Regan:
Leray-Schauder results for multivalued nonlinear contractions defined on closed subsets of a Fréchet space. Int. J. Math. Math. Sci. 2006: 43635:1-43635:8 (2006) - [j36]Ravi P. Agarwal, Donal O'Regan, Patricia J. Y. Wong
:
Constant-sign solutions of systems of higher order boundary value problems with integrable singularities. Math. Comput. Model. 44(11-12): 983-1008 (2006) - 2005
- [j35]Ravi P. Agarwal, Donal O'Regan:
A multiplicity result for second order impulsive differential equations via the Leggett Williams fixed point theorem. Appl. Math. Comput. 161(2): 433-439 (2005) - [j34]Daqing Jiang, Donal O'Regan, Ravi P. Agarwal:
Optimal existence theory for single and multiple positive periodic solutions to functional difference equations. Appl. Math. Comput. 161(2): 441-462 (2005) - [j33]Haishen Lü, Donal O'Regan, Ravi P. Agarwal:
Positive solutions for singular p-Laplacian equations with sign changing nonlinearities using inequality theory. Appl. Math. Comput. 165(3): 587-597 (2005) - [j32]Ravi P. Agarwal, Donal O'Regan, V. Lakshmikantham, S. Leela:
Nonresonant singular boundary value problems with sign changing nonlinearities. Appl. Math. Comput. 167(2): 1236-1248 (2005) - [j31]Ravi P. Agarwal, Donal O'Regan:
A note on the topological transversality theorem for acyclic maps. Appl. Math. Lett. 18(1): 17-22 (2005) - [j30]Ravi P. Agarwal, Donal O'Regan:
Homotopy and normalization properties for admissible maps. Appl. Math. Lett. 18(1): 33-40 (2005) - [j29]Yuqing Chen, Yeol Je Cho, Donal O'Regan:
On perturbations of accretive mappings. Appl. Math. Lett. 18(7): 775-781 (2005) - [j28]Ravi P. Agarwal, Donal O'Regan, V. Lakshmikantham:
Viability theory and fuzzy differential equations. Fuzzy Sets Syst. 151(3): 563-580 (2005) - [j27]Ravi P. Agarwal, Jewgeni H. Dshalalow, Donal O'Regan:
Fixed point theory for Mönch-type maps defined on closed subsets of Fréchet spaces: the projective limit approach. Int. J. Math. Math. Sci. 2005(17): 2775-2782 (2005) - [j26]Józef Banas
, Donal O'Regan:
Volterra-stieltjes integral operators. Math. Comput. Model. 41(2-3): 335-344 (2005) - [j25]Ravi P. Agarwal, Said R. Grace, Ivan Kiguradze, Donal O'Regan:
Oscillation of functional differential equations. Math. Comput. Model. 41(4-5): 417-461 (2005) - [j24]Józef Banas
, Donal O'Regan:
Integral operators of Urysohn-Stieltjes type. Period. Math. Hung. 51(2): 1-14 (2005) - 2004
- [j23]Daniel Franco
, Juan J. Nieto
, Donal O'Regan:
Existence of solutions for first order ordinary differential equations with nonlinear boundary conditions. Appl. Math. Comput. 153(3): 793-802 (2004) - [j22]Ravi P. Agarwal, Said R. Grace, Donal O'Regan:
Semipositone higher-order differential equations. Appl. Math. Lett. 17(2): 201-207 (2004) - [j21]Daqing Jiang, Wenjie Zuo, Donal O'Regan, Ravi P. Agarwal:
Optimal existence conditions for second order periodic solutions of delay differential equations with upper and lower solutions in the reverse order. Int. J. Comput. Math. 81(6): 707-717 (2004) - [j20]Ravi P. Agarwal, Jewgeni H. Dshalalow, Donal O'Regan:
A Furi-Pera theorem in Hausdorff topological spaces for acyclic maps. Int. J. Math. Math. Sci. 2004(47): 2483-2488 (2004) - 2003
- [j19]Ravi P. Agarwal, Haishen Lü, Donal O'Regan:
Existence theorems for the one-dimensional singular p--Laplacian equation with sign changing nonlinearities. Appl. Math. Comput. 143(1): 15-38 (2003) - [j18]Ravi P. Agarwal, Donal O'Regan:
Fixed-point theorems for S-KKM maps. Appl. Math. Lett. 16(8): 1257-1264 (2003) - [j17]Ravi P. Agarwal, Donal O'Regan:
An index theory for countably P-concentrative J maps. Appl. Math. Lett. 16(8): 1265-1271 (2003) - 2002
- [j16]Haishen Lü, Donal O'Regan, Chengkui Zhong:
Multiple positive solutions for the one-dimensional singular p-Laplacian. Appl. Math. Comput. 133(2-3): 407-422 (2002) - [j15]Ravi P. Agarwal, Donal O'Regan:
Countably P-Concentrative Pairs and the coincidence index. Appl. Math. Lett. 15(4): 439-444 (2002) - [j14]Marlène Frigon, Donal O'Regan:
Fuzzy contractive maps and fuzzy fixed points. Fuzzy Sets Syst. 129(1): 39-45 (2002) - 2001
- [j13]Ravi P. Agarwal, Donal O'Regan:
A generalization of the Petryshyn-Leggett-Williams fixed point theorem with applications to integral inclusions. Appl. Math. Comput. 123(2): 263-274 (2001) - [j12]Ravi P. Agarwal, Donal O'Regan:
Fixed-point theorems for multivalued maps with closed values on complete gauge spaces. Appl. Math. Lett. 14(7): 831-836 (2001) - [j11]Ravi P. Agarwal, Donal O'Regan:
Variational inequalities, coincidence theory, and minimax inequalities. Appl. Math. Lett. 14(8): 989-996 (2001) - 2000
- [j10]Ravi P. Agarwal, Donal O'Regan:
A coupled system of difference equations. Appl. Math. Comput. 114(1): 39-49 (2000) - [j9]Ravi P. Agarwal, Donal O'Regan:
Multiple nonnegative solutions for second order impulsive differential equations. Appl. Math. Comput. 114(1): 51-59 (2000) - [j8]Ravi P. Agarwal, Donal O'Regan:
Multivalued essential maps of approximable and acyclic type. Appl. Math. Lett. 13(1): 7-11 (2000) - [j7]Ravi P. Agarwal, Donal O'Regan:
Singular Volterra integral equations. Appl. Math. Lett. 13(1): 115-120 (2000) - [j6]Ravi P. Agarwal, Donal O'Regan:
Existence results for singular integral equations of fredholm type. Appl. Math. Lett. 13(2): 27-34 (2000) - [j5]Ravi P. Agarwal, Donal O'Regan:
Essential and inessential maps and continuation theorems. Appl. Math. Lett. 13(2): 83-90 (2000) - [j4]Ravi P. Agarwal, Donal O'Regan:
Discrete conjugate boundary value problems. Appl. Math. Lett. 13(2): 97-104 (2000) - [j3]Ravi P. Agarwal, Donal O'Regan:
Triple solutions to boundary value problems on time scales. Appl. Math. Lett. 13(4): 7-11 (2000) - [j2]Donal O'Regan:
Weakly inward zero epi maps. Appl. Math. Lett. 13(4): 13-16 (2000)
1990 – 1999
- 1999
- [j1]Donal O'Regan, Maria Meehan
:
Periodic and almost periodic solutions of integral equations. Appl. Math. Comput. 105(2-3): 121-136 (1999)
Coauthor Index

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