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Displaying Results 1  12 of 12 on page 1 of 1
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Best proximity pairs for upper semicontinuous setvalued maps in hyperconvex metric spaces
(2018)
AminiHarandi, A; Farajzadeh, AP; O'Regan, D; Agarwal, RP
Best proximity pairs for upper semicontinuous setvalued maps in hyperconvex metric spaces
(2018)
AminiHarandi, A; Farajzadeh, AP; O'Regan, D; Agarwal, RP
http://hdl.handle.net/10379/10240
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Existence results for some initial and boundary value problems without growth restriction
(2018)
Frigon, Marlene; O'Regan, Donal
Existence results for some initial and boundary value problems without growth restriction
(2018)
Frigon, Marlene; O'Regan, Donal
Abstract:
In this paper, using the Schauder Fixed Point Theorem, we establish some existence results or initial and boundary value problems for differential equations withouth growth restriction on the right member.
http://hdl.handle.net/10379/9190
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Fixed points for better admissible multifunctions on proximity spaces
(2018)
OʼRegan, Donal; Perán, Juan
Fixed points for better admissible multifunctions on proximity spaces
(2018)
OʼRegan, Donal; Perán, Juan
http://hdl.handle.net/10379/13303
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Fixed points of conditionally fcontractions in complete metriclike spaces
(2018)
Karapınar, Erdal; Kutbi, Marwan A; Piri, Hossein; O’Regan, Donal
Fixed points of conditionally fcontractions in complete metriclike spaces
(2018)
Karapınar, Erdal; Kutbi, Marwan A; Piri, Hossein; O’Regan, Donal
Abstract:
In this paper, we introduce the notion of a conditionally Fcontraction in the setting of complete metriclike spaces and we investigate the existence of fixed points of such mappings. Our results unify, extend, and improve several results in the literature.
http://hdl.handle.net/10379/12147
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Fixed points of generalized contractive mappings of integral type
(2018)
Alsulami, Hamed H; Karapınar, Erdal; O’Regan, Donal; Shahi, Priya
Fixed points of generalized contractive mappings of integral type
(2018)
Alsulami, Hamed H; Karapınar, Erdal; O’Regan, Donal; Shahi, Priya
Abstract:
The aim of this paper is to introduce classes of alphaadmissible generalized contractive type mappings of integral type and to discuss the existence of fixed points for these mappings in complete metric spaces. Our results improve and generalize fixed point results in the literature.
http://hdl.handle.net/10379/10228
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New fixedpoints results for 1set contractive set valued maps
(2018)
O'Regan, D.
New fixedpoints results for 1set contractive set valued maps
(2018)
O'Regan, D.
Abstract:
New fixedpoint theorems and random fixedpoint theorems are presented for multivalued maps.
http://hdl.handle.net/10379/9669
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On the existence of fixed points that belong to the zero set of a certain function
(2018)
Karapinar, Erdal; O’Regan, Donal; Samet, Bessem
On the existence of fixed points that belong to the zero set of a certain function
(2018)
Karapinar, Erdal; O’Regan, Donal; Samet, Bessem
Abstract:
Let T : X &gt; X be a given operator and FT be the set of its fixed points. For a certain function phi : X &gt; [0,infinity), we say that FT is phiadmissible if FT is nonempty and FT subset of Z(phi), where Z(phi) is the zero set of phi. In this paper, we study the phiadmissibility of a new class of operators. As applications, we establish a new homotopy result and we obtain a partial metric version of the BoydWong fixed point theorem.
http://hdl.handle.net/10379/12148
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On the oscillation of certain thirdorder difference equations
(2018)
Agarwal, Ravi P; Grace, Said; O'Regan, Donal
On the oscillation of certain thirdorder difference equations
(2018)
Agarwal, Ravi P; Grace, Said; O'Regan, Donal
Abstract:
We establish some new criteria for the oscillation of thirdorder difference equations of the form Delta((1/a(2)(n))(Delta(1/a(1)(n))(Delta x(n))(alpha 1))(alpha 2)) + delta q(n)f(x[g(n)]) = 0, where Delta is the forward difference operator defined by Delta x(n) = x(n+1)x(n).
http://hdl.handle.net/10379/8744
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Oscillation criteria for certain nth order differential equations with deviating arguments
(2018)
Agarwal, Ravi P; Grace, Said R; O'Regan, Donal
Oscillation criteria for certain nth order differential equations with deviating arguments
(2018)
Agarwal, Ravi P; Grace, Said R; O'Regan, Donal
http://hdl.handle.net/10379/8739
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Oscillation of functional differential equations
(2018)
Agarwal, R.P.; Grace, S.R.; Kiguradze, I.; O'Regan, D.
Oscillation of functional differential equations
(2018)
Agarwal, R.P.; Grace, S.R.; Kiguradze, I.; O'Regan, D.
Abstract:
Some new criteria for the oscillation of functional differential equations of the form, d/dt[1/a(n1)(t) d/dt q (t) f (x [g (t)]) = 0, dt a._1 (t) Tt a,,2 (t) Tt al(t) dt are presented in this paper. @ 2005 Elsevier Ltd. All rights reserved.
http://hdl.handle.net/10379/8738
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Positive solutions and bifurcation phenomena for nonlinear elliptic equations of logistic type: the superdiffusive case
(2018)
Filippakis, Michael E.; O'Regan, Donal; Papageorgiou, Nikolaos S.
Positive solutions and bifurcation phenomena for nonlinear elliptic equations of logistic type: the superdiffusive case
(2018)
Filippakis, Michael E.; O'Regan, Donal; Papageorgiou, Nikolaos S.
Abstract:
We consider a nonlinear elliptic equation of logistic type, driven by the pLaplacian differential operator with a general superdiffusive reaction. We show that the equation exhibits a bifurcation phenomenon. Namely there is a critical value lambda(*) of the parameter lambda &gt; 0, such that, if lambda &gt; lambda(*), the equation has two nontrivial positive smooth solutions, if lambda = lambda(*), then there is one positive solution and finally if lambda is an element of (0, lambda(*)) then there is no positive solution.
http://hdl.handle.net/10379/11466
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The oscillation of certain higherorder functional differential equations
(2018)
Agarwal, R.P; Grace, S.R; O'Regan, D
The oscillation of certain higherorder functional differential equations
(2018)
Agarwal, R.P; Grace, S.R; O'Regan, D
http://hdl.handle.net/10379/8741
Displaying Results 1  12 of 12 on page 1 of 1
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