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List of works by Donal O'Regan

A Dual of the Compression-Expansion Fixed Point Theorems

A Kamenev-type oscillation result for a linear <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mi>α</mml:mi><mml:mo str

scientific article published in 2015

A New Gap Function for Vector Variational Inequalities with an Application

A Schauder fixed point theorem in semilinear spaces and applications

A Strong Convergence Theorem for Solving an Equilibrium Problem and a Fixed Point Problem Using the Bregman Distance

scientific article published in 2022

A Unified Fixed Point Theory for Countably P -Concentrative Multimaps

A computation method of Hausdorff distance for translation time scales

scholarly article

A fixed point theorem in uniform spaces generated by a family of b-pseudometrics

scholarly article

A matched space for time scales and applications to the study on functions

A monotone iterative technique for stationary and time dependent problems in Banach spaces

article by M.A. El-Gebeily et al published March 2010 in Journal of Computational and Applied Mathematics

A unified theory for homotopy principles for multimaps

A variational approach to nonlinear logistic equations

scientific article published on 23 March 2015

A variational approach to singular quasilinear elliptic problems with sign changing nonlinearities

scholarly article by Ravi P. Agarwal et al published October 2006 in Applicable Analysis

An Approximation Approach to Eigenvalue Intervals for Singular Boundary Value Problems with Sign Changing and Superlinear Nonlinearities

An efficient iterative quasi-reversibility method for the inverse source problem of time-fractional diffusion equations

scholarly article

An essential map approach for multimaps defined on closed subsets of Fréchet spaces

article by Donal O'Regan published May 2006 in Applicable Analysis

An existence result for a new class of fuzzy fractional differential inclusions with Clarke's subdifferential via resolvent operators in Banach spaces

scientific article published in 2022

Analysis of a Stochastic Holling Type II Predator–Prey Model Under Regime Switching

scientific article published in 2019

Analysis of nonlinear fractional diffusion equations with a Riemann-liouville derivative

scientific article published in 2022

Analysis of positivity results for discrete fractional operators by means of exponential kernels

scientific article published in 2022

Anti-periodic solutions for evolution equations associated with maximal monotone mappings

Anti-periodic solutions for fully nonlinear first-order differential equations

Approximate Iterative Method for Initial Value Problem of Impulsive Fractional Differential Equations with Generalized Proportional Fractional Derivatives

scientific article published in 2021

Approximate solution for a 2-D fractional differential equation with discrete random noise

scientific article published in 2020

Approximation of mild solutions of a semilinear fractional differential equation with random noise

scientific article published in 2020

Asymptotic Behavior of Delayed Reaction-Diffusion Neural Networks Modeled by Generalized Proportional Caputo Fractional Partial Differential Equations

scientific article published in 2023

Basic Concepts of Riemann–Liouville Fractional Differential Equations with Non-Instantaneous Impulses

scholarly article

Best Decision-Making on the Stability of the Smoke Epidemic Model via Z-Numbers and Aggregate Special Maps

scientific article published on 15 March 2024

Best approximations of Stochastic bi-homomorphisms and bi-derivations in MC-$$\diamond$$-algebras

scientific article published in 2022

Bilateral set-valued stochastic integral equations

scholarly article

Bilevel equilibrium problems with lower and upper bounds in locally convex Hausdorff topological vector spaces ⬇️

scholarly article

Boundary Value Problems for Fractional Differential Equations of Caputo Type and Ulam Type Stability: Basic Concepts and Study

scientific article published in 2023

Boundary Value Problems with Sign Changing Nonlinearities for Second Order Singular Ordinary Differential Equations

Boundary value problems for second order impulsive differential equations using set-valued maps

scholarly article by Marlèene Frigon & Donal O'Regan published November 1995 in Applicable Analysis

Browder-Krasnoselskii-Type Fixed Point Theorems in Banach Spaces

Calculus of fuzzy vector-valued functions and almost periodic fuzzy vector-valued functions on time scales

scholarly article

Caputo fractional differential equations with non-instantaneous impulses and strict stability by Lyapunov functions

scholarly article published in 2017

Coincidence degree theory for mappings of classL − (S+)

Coincidence for morphisms based on compactness conditions on countable sets

scholarly article

Coincidence for morphisms based on compactness principles

scholarly article published on 19 June 2018

Coincidence theory for compact morphisms

Common fixed point theorems and minimax inequalities in locally convex Hausdorff topological vector spaces

scholarly article by Ravi P. Agarwal et al published 17 November 2009 in Applicable Analysis

Compactness criteria and new impulsive functional dynamic equations on time scales

Conditions for persistence and ergodicity of a stochastic Lotka–Volterra predator–prey model with regime switching

scientific article published in 2015

Constant Sign and Nodal Solutions for Problems with the -Laplacian and a Nonsmooth Potential Using Variational Techniques

Continuation Theory for Contractions on Spaces with Two Vector-Valued Metrics

Continuation principles based on essential maps and topological degree

Continuity with respect to fractional order of the time fractional diffusion-wave equation ⬇️

scholarly article

Continuous dependence of solutions of a certain class of singular BVPs on functional parameters ⬇️

scholarly article

Controllability Results for First Order Impulsive Fuzzy Differential Systems

scientific article published in 2022

Convergence Analysis for Iterative Learning Control of Conformable Impulsive Differential Equations

scientific article published in 2021

Convergence analysis of solution sets for fuzzy optimization problems ⬇️

scholarly article

Dead Core Problems for Singular Equations with φ-Laplacian

article published in 2007

Degenerate Anisotropic Differential Operators and Applications

Deterministic and random fixed points for maps on extension type spaces

scholarly article by Donal O’Regan published 26 June 2017 in Applicable Analysis

Differential equations with random Gamma distributed moments of non-instantaneous impulses and p-moment exponential stability

scientific article published in 2018

Discontinuous generalized double-almost-periodic functions on almost-complete-closed time scales ⬇️

scholarly article

Discrete integral conditions for weak trajectories and asymptotic stability for operators in Banach spaces ⬇️

scholarly article

Dynamic analysis of a stochastic toxin-mediated predator-prey model in aquatic environments

scientific article published in 2021

Dynamic equations on time scales: a survey

scholarly article

Dynamics of a stochastic SIQR epidemic model with saturated incidence rate

scholarly article

Dynamics of the stochastic chemostat with Monod-Haldane response function

scientific article

Ergodic property of a Lotka–Volterra predator–prey model with white noise higher order perturbation under regime switching

scientific article published in 2018

Essential maps and coincidence theory

Existence Theory for Singular Initial and Boundary Value Problems: A Fixed Point Approach

Existence and multiplicity of solutions for some three-point nonlinear boundary value problems

article published in 2006

Existence of Nontrivial Solutions for Sixth-Order Differential Equations

scientific article published in 2021

Existence of positive solutions to time scale equations using time scale inequalities ⬇️

scholarly article

Existence of solutions for first order ordinary differential equations with nonlinear boundary conditions

Existence of solutions to some initial value, two-point and multi-point boundary value problems with discontinuous nonlinearities

article published in 1989

Existence results of Brezis-Browder type for systems of Fredholm integral equations

Existence, uniqueness and continuous dependence of solutions to conformable stochastic differential equations

scientific article published in 2020

Explicit Solutions of Initial Value Problems for Linear Scalar Riemann-Liouville Fractional Differential Equations With a Constant Delay ⬇️

scholarly article

Exponential stability for differential equations with random impulses at random times

scientific article

Fixed Point Theorems for ws-Compact Mappings in Banach Spaces

Fixed Point Theory for Admissible Type Maps with Applications

Fixed Point Theory of

Fixed Point and Homotopy Results For Generalized Contractive Maps of Reich Type

article published in 2003

Fixed point and variational methods for certain classes of boundary-value problems

Fixed point theorems for the bk-admissible maps of park

Fixed point theorems in generalized Banach spaces under G-weak topology features

scientific article published in 2022

Fixed point theory for compact absorbing contractive admissible type maps

Fixed point theory for countably weakly condensing maps and multimaps in non-separable Banach spaces

scholarly article

Fixed point theory for extension type maps in topological spaces

Fixed point theory in Fréchet spaces for Volterra type operators

Fixed points of conditionally F-contractions in complete metric-like spaces

Fixed points of generalized contractive mappings of integral type

Fixed-point theorems for nonlinear operators with singular perturbations and applications

Fractional Landweber method for an initial inverse problem for time-fractional wave equations

scholarly article

Fuzzy Approximate Solutions of Matrix-Valued Fractional Differential Equations by Fuzzy Control Functions

scientific article published in 2023

Fuzzy Volterra Integral Equations: A Stacking Theorem Approach

Generalized Leray–Schauder principles for general classes of maps in completely regular topological spaces

scholarly article by Donal O’Regan published 24 September 2013 in Applicable Analysis

Generalized Proportional Caputo Fractional Differential Equations with Delay and Practical Stability by the Razumikhin Method

scientific article published in 2022

Generalized Proportional Caputo Fractional Differential Equations with Noninstantaneous Impulses: Concepts, Integral Representations, and Ulam-Type Stability

scientific article published in 2022

Generalized Well-Posedness for Symmetric Vector Quasi-Equilibrium Problems

scientific article

GeodesicB-Preinvex Functions and Multiobjective Optimization Problems on Riemannian Manifolds

Global behaviour of the components of nodal solutions for Lidstone boundary value problems

Homoclinic orbits for a singular second-order neutral differential equation

scientific article published in 2010

Hyers-Ulam Stability for Linear Differences with Time Dependent and Periodic Coefficients

scholarly article

Hyers-Ulam Stability for Linear Differences with Time Dependent and Periodic Coefficients: The Case When the Monodromy Matrix Has Simple Eigenvalues

scholarly article

Hyers–Ulam stability and existence of solutions for fractional differential equations with Mittag–Leffler kernel ⬇️

scholarly article

Hyers–Ulam stability for equations with differences and differential equations with time-dependent and periodic coefficients

scholarly article

Infinite time blow-up of solutions for a plate equation with weak damping and logarithmic nonlinearity

scholarly article

Initial and boundary value problems for fuzzy differential equations

Intersection theorems for weak KKM set-valued mappings in the finite dimensional setting

scholarly article

Iterative learning control for differential inclusions of parabolic type with noninstantaneous impulses

scholarly article

Krasnosel’skii Type Fixed Point Theorems for Mappings on Nonconvex Sets

Leray–Schauder Alternatives for Maps Satisfying Countable Compactness Conditions ⬇️

scholarly article

Linear impulsive Volterra integro-dynamic system on time scales

Local pseudo almost automorphic functions with applications to semilinear dynamic equations on changing-periodic time scales

scholarly article

Local-periodic solutions for functional dynamic equations with infinite delay on changing-periodic time scales

scholarly article

Lyapunov Functions and Lipschitz Stability for Riemann–Liouville Non-Instantaneous Impulsive Fractional Differential Equations

scientific article published in 2021

Lyapunov Functions and Stability of Caputo Fractional Differential Equations with Delays

scholarly article

Lyapunov functions and strict stability of Caputo fractional differential equations

Lyapunov functions to Caputo reaction-diffusion fractional neural networks with time-varying delays

scholarly article published on 27 June 2018

Lyapunov regularity and stability of linear non-instantaneous impulsive differential systems

scholarly article

Lyapunov-type inequalities for a class of fractional differential equations

Lyapunov-type inequalities for coupled systems of nonlinear fractional differential equations via a fixed point approach

scholarly article

Mittag-Leffler Type Stability of Delay Generalized Proportional Caputo Fractional Differential Equations: Cases of Non-Instantaneous Impulses, Instantaneous Impulses and without Impulses

scientific article published in 2022

Mittag-Leffler stability for non-instantaneous impulsive Caputo fractional differential equations with delays

scholarly article

Multi- C ∗ $C^{*}$ -ternary algebras and applications

scholarly article by Hamed H Alsulami et al published 15 July 2015 in Journal of Inequalities and Applications

Multi-term fractional differential equations in a nonreflexive Banach space

Multiple nonnegative solutions of nonlinear integral equations on compact and semi-infinite intervals

Multiple solutions for sub-linear impulsive three-point boundary value problems

Multiplicity Results Using Bifurcation Techniques for a Class of Fourth-Order -Point Boundary Value Problems

article by Yansheng Liu & Donal O'Regan published 2009 in Boundary Value Problems

Multiplicity Results via Topological Degree for Impulsive Boundary Value Problems under Non-Well-Ordered Upper and Lower Solution Conditions

Multiplicity and uniqueness results for the singular nonlocal boundary value problem involving nonlinear integral conditions

Multiplicity results for a class of fourth order semipositonem-point boundary value problems

article by Yansheng Liu & Donal O'Regan published May 2012 in Applicable Analysis

Multivalued nonlinear equations on the half line: A fixed point approach ⬇️

scholarly article

Non-Instantaneous Impulsive Fractional Differential Equations with State Dependent Delay and Practical Stability

scientific article published in 2021

Nonlinear fractional differential equations in nonreflexive Banach spaces and fractional calculus

Nontrivial Solutions for a Higher Order Nonlinear Fractional Boundary Value Problem Involving Riemann-Liouville Fractional Derivatives

scholarly article

Nontrivial solutions for an integral boundary value problem involving Riemann–Liouville fractional derivatives

scholarly article

Nontrivial solutions for boundary value problems of a fourth order difference equation with sign-changing nonlinearity

scholarly article

Numerical solutions for the new Coronavirus (COVID 19) mathematical model by the operational matrix using the clique polynomials method

scientific article published in April 2024

On a fractional differential equation with infinitely many solutions

article published in 2012

On non-autonomous abstract nonlinear fractional differential equations

On second order differential equations with state-dependent delay

scholarly article by Eduardo Hernández et al published 4 October 2017 in Applicable Analysis

On the class of relatively weakly demicompact nonlinear operators

scholarly article published in June 2018

On the existence of fixed points that belong to the zero set of a certain function

On the solutions of first-order linear impulsive fuzzy differential equations

scientific article published in 2020

P-Moment Exponential Stability of Caputo Fractional Differential Equations with Random Impulses

scientific article published in 2017

Periodic Navier Solutions for the Plate Equation with Non-Monotone Nonlinearities: the Multidimensional Case

scientific article published on 19 May 2016

Periodic Solution for a Stochastic Non-autonomous Predator-Prey Model with Holling II Functional Response

scientific article published in 2018

Periodic solution for a non-autonomous Lotka–Volterra predator–prey model with random perturbation

scientific article published in 2015

Periodic solutions for forced vibrations of wave equation with general nonlinearities: the multidimensional case

article

Positive Almost Periodic Solution for a Noninstantaneous Impulsive Lasota–Wazewska Model ⬇️

scholarly article

Positive Solutions for Nonlinear Nonhomogeneous Robin Problems

scientific article published in 2015

Positive Solutions for a $$n$$ n th-Order Impulsive Differential Equation with Integral Boundary Conditions

scientific article published in 2013

Positive Solutions for a Fourth-Order Riemann–Stieltjes Integral Boundary Value Problem ⬇️

scholarly article

Positive Solutions for a Hadamard Fractional p-Laplacian Three-Point Boundary Value Problem

scholarly article

Positive Solutions for a System of Riemann–Liouville Type Fractional-Order Integral Boundary Value Problems

scientific article published in 2022

Positive Solutions of Singular Complementary Lidstone Boundary Value Problems

Positive properties of Green's function for three-point boundary value problems of nonlinear fractional differential equations and its applications

Positive solutions for a second-order p-Laplacian impulsive boundary value problem

Positive solutions for a system of nonlinear Hadamard fractional differential equations involving coupled integral boundary conditions

scholarly article

Positive solutions for singular boundary value problems with sign changing nonlinearities depending on x′ via index theory

scholarly article by Ravi P. Agarwal et al published January 2007 in Applicable Analysis

Positive solutions of a second-order boundary value problem via integro-differential equation arguments

Practical stability for Riemann–Liouville delay fractional differential equations

scientific article published in 2021

Properties of solutions of fourth-order differential equations with boundary conditions

article by Samir H Saker et al published 2013 in Journal of Inequalities and Applications

Proportional Caputo Fractional Differential Equations

scientific article published in 2022

Quadratic Lyapunov Functions for Stability of the Generalized Proportional Fractional Differential Equations with Applications to Neural Networks

scientific article published in 2021

Random and deterministic fixed point theory for generalized contractive maps

scholarly article by R.P. Agarwal et al published July 2004 in Applicable Analysis

Recent Trends in Boundary Value Problems

Recent Trends in Boundary Value Problems 2014

Refinements of Generalized Hölder’s Inequalities

Regularization of a final value problem for a nonlinear biharmonic equation

scholarly article

Regularization of an initial inverse problem for a biharmonic equation

scholarly article

Regularized gap functions and error bounds for generalized mixed weak vector quasivariational inequality problems in fuzzy environments ⬇️

scholarly article

Regularized solution for a biharmonic equation with discrete data

scholarly article

Relative controllability of delay differential systems with impulses and linear parts defined by permutable matrices

scholarly article

Representation of solutions to fuzzy linear conformable differential equations

scientific article published in 2022

Singular Boundary Value Problems for Ordinary Differential Equations

Soliton Solution of the Nonlinear Time Fractional Equations: Comprehensive Methods to Solve Physical Models

scholarly article

Solutions for a fractional difference boundary value problem

Solving the Fornberg–Whitham Model Derived from Gilson–Pickering Equations by Analytical Methods

scientific article published on 23 January 2024

Some generalizations of Darbo’s theorem and applications to fractional integral equations

Some stability properties related to initial time difference for Caputo fractional differential equations

scholarly article published in February 2018

Stability Analysis for Conformable Non-instantaneous Impulsive Differential Equations

scientific article published in 2021

Stability Analysis of Second Order Impulsive Differential Equations

scientific article published in 2022

Stability Concepts of Riemann-Liouville Fractional-Order Delay Nonlinear Systems

scientific article published in 2021

Stability of Gene Regulatory Networks Modeled by Generalized Proportional Caputo Fractional Differential Equations

scientific article published in 2022

Stability of Generalized Proportional Caputo Fractional Differential Equations by Lyapunov Functions

scientific article published in 2022

Stability properties of neural networks with non-instantaneous impulses

scientific article published on 01 February 2019

Stationary points of set-valued contractive and nonexpansive mappings on ultrametric spaces

scholarly article published in June 2018

Stochastic Permanence, Stationary Distribution and Extinction of a Single-Species Nonlinear Diffusion System with Random Perturbation

article by Li Zu et al published 2014 in Abstract and Applied Analysis

Strong Convergence Theorem Obtained by a Generalized Projections Method for Solving an Equilibrium Problem and Fixed Point Problems

scientific article published in 2023

Structure of the solution set for a partial differential inclusion

The Cădariu–Radu method for existence, uniqueness and Gauss Hypergeometric stability of a class of Ξ-Hilfer fractional differential equations

scientific article published in 2022

The Topological Transversality Theorem for Multivalued Maps with Continuous Selections ⬇️

scholarly article

The dual variational method for n-th order ODEs with multipoint boundary conditions

The long time behavior of a predator–prey model with disease in the prey by stochastic perturbation

scientific article published in 2014

The structure of fixed-point sets of Lipschitzian type semigroups

Topological fixed point theory for compact multifunctions via homotopy and essential maps

scholarly article

Totally bounded subsets and a measure of noncompactness for Schatten class operators

scholarly article

Ulam type stability for first-order linear and nonlinear impulsive fuzzy differential equations

scientific article published in 2021

Ulam type stability of first-order linear impulsive fuzzy differential equations

scientific article published in 2020

Uncertain Asymptotic Stability Analysis of a Fractional-Order System with Numerical Aspects

scientific article published on 19 March 2024

Variational Methods and Critical Point Theory

Variational Methods and Critical Point Theory 2013

Variational approach to impulsive differential equations

Vector-valued functions on time scales and random differential equations

scientific article published in 2022

Well-posedness and stability for fuzzy fractional differential equations

scientific article published in 2022

g-Expectation for Conformable Backward Stochastic Differential Equations

scientific article published in 2022

n0-order Δ-almost periodic functions and dynamic equations

scholarly article by Chao Wang et al published 3 October 2017 in Applicable Analysis

p-Moment exponential stability of Caputo fractional differential equations with noninstantaneous random impulses

scientific article published in 2016

μ-stability of infinite delay functional differential systems with impulsive effects

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