Donal O'Regan

According to our database1, Donal O'Regan authored at least 127 papers between 1999 and 2019.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

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Bibliography

2019
Hyers-Ulam Stability for Linear Differences with Time Dependent and Periodic Coefficients: The Case When the Monodromy Matrix Has Simple Eigenvalues.
Symmetry, 2019

Iterative learning control for differential inclusions of parabolic type with noninstantaneous impulses.
Applied Mathematics and Computation, 2019

2018
Global Mittag - Leffler Synchronization for Neural Networks Modeled by Impulsive Caputo Fractional Differential Equations with Distributed Delays.
Symmetry, 2018

Intersection Theorems with Applications in Optimization.
J. Optimization Theory and Applications, 2018

A note on initial value problems for fractional fuzzy differential equations.
Fuzzy Sets and Systems, 2018

Lyapunov Functions to Caputo Fractional Neural Networks with Time-Varying Delays.
Axioms, 2018

Representation of a solution for a fractional linear system with pure delay.
Appl. Math. Lett., 2018

On state dependent non-local conditions.
Appl. Math. Lett., 2018

Ergodic property of a Lotka-Volterra predator-prey model with white noise higher order perturbation under regime switching.
Applied Mathematics and Computation, 2018

A class of nonlinear non-instantaneous impulsive differential equations involving parameters and fractional order.
Applied Mathematics and Computation, 2018

Coincidence for morphisms based on compactness conditions on countable sets.
Applied Mathematics and Computation, 2018

Iterative techniques for the initial value problem for Caputo fractional differential equations with non-instantaneous impulses.
Applied Mathematics and Computation, 2018

2017
Common Fixed Point Theorems in Topological Vector Spaces via Intersection Theorems.
J. Optimization Theory and Applications, 2017

Asymptotic properties of the solutions of nonlinear non-instantaneous impulsive differential equations.
J. Franklin Institute, 2017

Noninstantaneous impulses in Caputo fractional differential equations and practical stability via Lyapunov functions.
J. Franklin Institute, 2017

Solving interval-valued fractional initial value problems under Caputo gH-fractional differentiability.
Fuzzy Sets and Systems, 2017

Monotone iterative technique for the initial value problem for differential equations with non-instantaneous impulses.
Applied Mathematics and Computation, 2017

2016
Global dissipativity of memristor-based complex-valued neural networks with time-varying delays.
Neural Computing and Applications, 2016

A class of impulsive differential variational inequalities in finite dimensional spaces.
J. Franklin Institute, 2016

2015
Extremal solutions for nonlinear fractional boundary value problems with p-Laplacian.
J. Computational Applied Mathematics, 2015

Generalized Well-Posedness for Symmetric Vector Quasi-Equilibrium Problems.
J. Applied Mathematics, 2015

A Kamenev-type oscillation result for a linear (1+α)-order fractional differential equation.
Applied Mathematics and Computation, 2015

2014
A Common Fixed Point Theorem with Applications.
J. Optimization Theory and Applications, 2014

pth Moment exponential stability of impulsive stochastic functional differential equations and application to control problems of NNs.
J. Franklin Institute, 2014

Refinements of Generalized Hölder's Inequalities.
J. Applied Mathematics, 2014

Geodesic B-Preinvex Functions and Multiobjective Optimization Problems on Riemannian Manifolds.
J. Applied Mathematics, 2014

Existence of weak solutions for a fourth-order Navier boundary value problem.
Appl. Math. Lett., 2014

The long time behavior of a predator-prey model with disease in the prey by stochastic perturbation.
Applied Mathematics and Computation, 2014

Nonautonomous impulsive systems with unbounded nonlinear terms.
Applied Mathematics and Computation, 2014

2013
The theory of pseudo-linear operators.
Knowl.-Based Syst., 2013

Comments on Some Recent Results on Controllability of Abstract Differential Problems.
J. Optimization Theory and Applications, 2013

Well-posedness for generalized quasi-variational inclusion problems and for optimization problems with constraints.
J. Global Optimization, 2013

A New Gap Function for Vector Variational Inequalities with an Application.
J. Applied Mathematics, 2013

Fixed points and exponential stability for a stochastic neutral cellular neural network.
Appl. Math. Lett., 2013

Almost periodic solutions for a Volterra model with mutual interference and Holling type III functional response.
Applied Mathematics and Computation, 2013

Existence of solutions for semi-linear abstract differential equations with not instantaneous impulses.
Applied Mathematics and Computation, 2013

2012
Positive solutions of a focal problem for one-dimensional p-Laplacian equations.
Mathematical and Computer Modelling, 2012

Stability analysis of generalized impulsive functional differential equations.
Mathematical and Computer Modelling, 2012

A Unifying Approach to Variational Relation Problems.
J. Optimization Theory and Applications, 2012

Gaps between zeros of second-order half-linear differential equations.
Applied Mathematics and Computation, 2012

A variational approach to the eigenvalue problem for higher order BVPs with singular nonlinearities.
Applied Mathematics and Computation, 2012

Coincidence theory for multimaps.
Applied Mathematics and Computation, 2012

On a new class of abstract integral equations and applications.
Applied Mathematics and Computation, 2012

2011
Characterization of self-adjoint ordinary differential operators.
Mathematical and Computer Modelling, 2011

Non-trivial solutions for nonlinear fourth-order elastic beam equations.
Computers & Mathematics with Applications, 2011

Stability of some set-valued functional equations.
Appl. Math. Lett., 2011

Anti-periodic solutions for evolution equations associated with maximal monotone mappings.
Appl. Math. Lett., 2011

Eigenvalue intervals for higher order problems with singular nonlinearities.
Applied Mathematics and Computation, 2011

Applications of linking to Hammerstein integral equations.
Applied Mathematics and Computation, 2011

2010
Infinitely many weak solutions for a class of quasilinear elliptic systems.
Mathematical and Computer Modelling, 2010

Uniform separable differential operators with parameters.
J. Franklin Institute, 2010

A monotone iterative technique for stationary and time dependent problems in Banach spaces.
J. Computational Applied Mathematics, 2010

Strong convergence theorems for relatively nonexpansive mappings in Banach spaces with applications.
Computers & Mathematics with Applications, 2010

Periodic constant-sign solutions for systems of Hill's equations.
Asymptotic Analysis, 2010

Anti-periodic solutions for evolution equations associated with monotone type mappings.
Appl. Math. Lett., 2010

Bounds for analytic solutions to integral equations in the complex domain.
Appl. Math. Lett., 2010

Essential extension type maps for general classes of maps.
Applied Mathematics and Computation, 2010

Type I operators and the approximation of singular two-point boundary value problems.
Applied Mathematics and Computation, 2010

2009
Constant-sign solutions for systems of singular integral equations of Hammerstein type.
Mathematical and Computer Modelling, 2009

Controllability of Volterra-Fredholm type systems in Banach spaces.
J. Franklin Institute, 2009

Degree theory for monotone type mappings in non-reflexive Banach spaces.
Appl. Math. Lett., 2009

A selection of oscillation criteria for second-order differential inclusions.
Appl. Math. Lett., 2009

New kinds of generalized variational-like inequality problems in topological vector spaces.
Appl. Math. Lett., 2009

A note on the degree for maximal monotone mappings in finite dimensional spaces.
Appl. Math. Lett., 2009

Higher order nonlinear degenerate differential operator equations.
Appl. Math. Lett., 2009

Generalized degree for classes of finite dimensional upper hemi-continuous mappings in separable Banach spaces.
Applied Mathematics and Computation, 2009

Positive solutions for singular second order Neumann boundary value problems via a cone fixed point theorem.
Applied Mathematics and Computation, 2009

The fixed point index for compact absorbing contractive admissible maps.
Applied Mathematics and Computation, 2009

On the homotopy property of topological degree for maximal monotone mappings.
Applied Mathematics and Computation, 2009

B-Separable boundary value problems in Banach-valued function spaces.
Applied Mathematics and Computation, 2009

2008
Four functionals fixed point theorem.
Mathematical and Computer Modelling, 2008

Existence theory for multiple solutions to semipositone Dirichlet boundary value problems with singular dependent nonlinearities for second-order impulsive differential equations.
Applied Mathematics and Computation, 2008

Existence and uniqueness of positive solutions for fourth-order nonlinear singular continuous and discrete boundary value problems.
Applied Mathematics and Computation, 2008

Degree theory for (S+) mappings in non-reflexive banach spaces.
Applied Mathematics and Computation, 2008

Nonlinear contraction theorems in probabilistic spaces.
Applied Mathematics and Computation, 2008

Singular integral equations arising in draining and coating flows.
Applied Mathematics and Computation, 2008

A common fixed point theorem for R-weakly commuting mappings in probabilistic spaces with nonlinear contractive conditions.
Applied Mathematics and Computation, 2008

Oscillation and global attractivity in a delay periodic host macroparasite model.
Applied Mathematics and Computation, 2008

2007
Multiple positive solutions for singular problems with mixed boundary data and derivative dependence.
Mathematical and Computer Modelling, 2007

Multiplicity results for three-point boundary value problems with a non-well-ordered upper and lower solution condition.
Mathematical and Computer Modelling, 2007

Anti-periodic solutions for fully nonlinear first-order differential equations.
Mathematical and Computer Modelling, 2007

The periodic boundary value problem for semilinear elastic beam equations: The resonance case.
Computers & Mathematics with Applications, 2007

Constant-sign solutions of a system of Volterra integral equations.
Computers & Mathematics with Applications, 2007

Positive and dead core solutions of singular Dirichlet boundary value problems with phi-Laplacian.
Computers & Mathematics with Applications, 2007

Nonlinear integral equations singular in the dependent variable.
Appl. Math. Lett., 2007

Second order initial value problems of Lane-Emden type.
Appl. Math. Lett., 2007

Leggett-Williams norm-type fixed point theorems for multivalued mappings.
Applied Mathematics and Computation, 2007

2006
Constant-sign solutions of systems of higher order boundary value problems with integrable singularities.
Mathematical and Computer Modelling, 2006

Leray-Schauder results for multivalued nonlinear contractions defined on closed subsets of a Fréchet space.
Int. J. Math. Mathematical Sciences, 2006

Leray-Schauder results for inward acyclic and approximable maps defined on Fréchet spaces.
Appl. Math. Lett., 2006

Leray-Schauder and Krasnoselskii results for multivalued maps defined on pseudo-open subsets of a Fréchet space.
Appl. Math. Lett., 2006

Common fixed point theorems in S-fuzzy metric spaces.
Applied Mathematics and Computation, 2006

2005
Integral operators of Urysohn-Stieltjes type.
Periodica Mathematica Hungarica, 2005

Volterra-stieltjes integral operators.
Mathematical and Computer Modelling, 2005

Oscillation of functional differential equations.
Mathematical and Computer Modelling, 2005

Fixed point theory for Mönch-type maps defined on closed subsets of Fréchet spaces: the projective limit approach.
Int. J. Math. Mathematical Sciences, 2005

Viability theory and fuzzy differential equations.
Fuzzy Sets and Systems, 2005

On perturbations of accretive mappings.
Appl. Math. Lett., 2005

Homotopy and normalization properties for admissible maps.
Appl. Math. Lett., 2005

A note on the topological transversality theorem for acyclic maps.
Appl. Math. Lett., 2005

Positive solutions for singular p-Laplacian equations with sign changing nonlinearities using inequality theory.
Applied Mathematics and Computation, 2005

Optimal existence theory for single and multiple positive periodic solutions to functional difference equations.
Applied Mathematics and Computation, 2005

Nonresonant singular boundary value problems with sign changing nonlinearities.
Applied Mathematics and Computation, 2005

A multiplicity result for second order impulsive differential equations via the Leggett Williams fixed point theorem.
Applied Mathematics and Computation, 2005

2004
A Furi-Pera theorem in Hausdorff topological spaces for acyclic maps.
Int. J. Math. Mathematical Sciences, 2004

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., 2004

Semipositone higher-order differential equations.
Appl. Math. Lett., 2004

Existence of solutions for first order ordinary differential equations with nonlinear boundary conditions.
Applied Mathematics and Computation, 2004

2003
An index theory for countably P-concentrative J maps.
Appl. Math. Lett., 2003

Fixed-point theorems for S-KKM maps.
Appl. Math. Lett., 2003

Existence theorems for the one-dimensional singular p--Laplacian equation with sign changing nonlinearities.
Applied Mathematics and Computation, 2003

2002
Fuzzy contractive maps and fuzzy fixed points.
Fuzzy Sets and Systems, 2002

Countably P-Concentrative Pairs and the coincidence index.
Appl. Math. Lett., 2002

Multiple positive solutions for the one-dimensional singular p-Laplacian.
Applied Mathematics and Computation, 2002

2001
Variational inequalities, coincidence theory, and minimax inequalities.
Appl. Math. Lett., 2001

Fixed-point theorems for multivalued maps with closed values on complete gauge spaces.
Appl. Math. Lett., 2001

A generalization of the Petryshyn-Leggett-Williams fixed point theorem with applications to integral inclusions.
Applied Mathematics and Computation, 2001

2000
Weakly inward zero epi maps.
Appl. Math. Lett., 2000

Triple solutions to boundary value problems on time scales.
Appl. Math. Lett., 2000

Discrete conjugate boundary value problems.
Appl. Math. Lett., 2000

Essential and inessential maps and continuation theorems.
Appl. Math. Lett., 2000

Existence results for singular integral equations of fredholm type.
Appl. Math. Lett., 2000

Singular Volterra integral equations.
Appl. Math. Lett., 2000

Multivalued essential maps of approximable and acyclic type.
Appl. Math. Lett., 2000

Multiple nonnegative solutions for second order impulsive differential equations.
Applied Mathematics and Computation, 2000

A coupled system of difference equations.
Applied Mathematics and Computation, 2000

1999
Periodic and almost periodic solutions of integral equations.
Applied Mathematics and Computation, 1999


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