Results 31 to 40 of about 35,438 (237)

Nontrivial solutions of boundary value problems for second order functional differential equations [PDF]

open access: yes, 2015
In this paper we present a theory for the existence of multiple nontrivial solutions for a class of perturbed Hammerstein integral equations. Our methodology, rather than to work directly in cones, is to utilize the theory of fixed point index on affine ...
Calamai, Alessandro, Infante, Gennaro
core   +1 more source

Existence results of fractional differential equations with nonlocal double-integral boundary conditions

open access: yesMathematical Biosciences and Engineering, 2022
<abstract><p>This article presents the existence outcomes concerning a family of singular nonlinear differential equations containing Caputo's fractional derivatives with nonlocal double integral boundary conditions. According to the nature of Caputo's fractional calculus, the problem is converted into an equivalent integral equation, while
openaire   +3 more sources

On a boundary value problem for mixed type equation with nonlocal initial conditions in the rectangle

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The boundary value problem for mixed type equation with nonlocal initial conditions in integral form is considered. The main result states that the nonlocal problem is equivalent to the classical boundary value problem for a loaded equation.
Svetlana V Kirichenko
doaj   +3 more sources

Boundary value problems for Caputo fractional differential equations with nonlocal and fractional integral boundary conditions [PDF]

open access: yesArabian Journal of Mathematics, 2020
AbstractIn this paper, we study the existence and uniqueness of solutions for fractional differential equations with nonlocal and fractional integral boundary conditions. New existence and uniqueness results are established using the Banach contraction principle. Other existence results are obtained using O’Regan fixed point theorem and Burton and Kirk
Choukri Derbazi, Hadda Hammouche
openaire   +2 more sources

Existence results for fractional q-difference equations with nonlocal q-integral boundary conditions [PDF]

open access: yesAdvances in Difference Equations, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Yulin, Chen, Haibo, Zhang, Qiming
openaire   +2 more sources

Boundary value problems for nonlinear fractional differential equations and inclusions with nonlocal and fractional integral boundary conditions [PDF]

open access: yesOpuscula Mathematica, 2013
This paper studies the boundary value problem of nonlinear fractional differential equations and inclusions of order \(q \in (1,2]\) with nonlocal and integral boundary conditions.
Sotiris K. Ntouyas
doaj   +1 more source

On the problem of calculation of correlation functions in the six-vertex model with domain wall boundary conditions

open access: yes, 2011
The problem of calculation of correlation functions in the six-vertex model with domain wall boundary conditions is addressed by considering a particular nonlocal correlation function, called row configuration probability.
A. G. Izergin   +24 more
core   +1 more source

Electron Viscosity, Current Vortices and Negative Nonlocal Resistance in Graphene [PDF]

open access: yes, 2015
Quantum-critical states of diverse strongly correlated systems are predicted to feature universal collision-dominated transport resembling that of viscous fluids.
Falkovich, Gregory, Levitov, Leonid
core   +2 more sources

Well-posedness of elliptic-parabolic differential problem with integral condition

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
In this paper, we study a class of nonlocal boundary value problems for elliptic-parabolic equations subject to integral-type conditions. Such problems naturally emerge in various physical and engineering contexts, including diffusion processes in ...
O. Gercek
doaj   +1 more source

Infinite point and Riemann–Stieltjes integral conditions for an integro-differential equation

open access: yesNonlinear Analysis, 2019
In this paper, we study the existence of solutions for two nonlocal problems of integro-differential equation with nonlocal infinite-point and Riemann–Stieltjes integral boundary conditions. The continuous dependence of the solution will be studied.
Ahmed El-Sayed, Reda Gamal
doaj   +1 more source

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