Results 61 to 70 of about 12,177,110 (235)
POSITIVE SOLUTIONS OF NONLOCAL SINGULAR BOUNDARY VALUE PROBLEMS [PDF]
Glasgow Mathematical Journal, 2004 The paper presents the existence result for positive solutions of the differential equation $(g(x))''=f(t,x,(g(x))')$ satisfying the nonlocal boundary conditions $x(0)=x(T)$, $\min\{ x(t): t \in J\}=0$. Here the positive function $f$ satisfies local Carathéodory conditions on $[0,T] \times (0,\infty) \times (\R {\setminus} \{0\})$ and $f$ may be ...
AGARWAL, RAVI P. +2 more
openaire +2 more sources
, 2016 We consider an initial-boundary-value problem for a semilinear parabolic equation with nonlinear nonlocal boundary conditions. We prove the principle of comparison, establish the existence of local solutions, and study the problem of uniqueness and ...
Kavitova, T.V. +3 more
core +1 more source
Internationalization and ESG Controversies: Do Foreign Directors on Corporate Boards Matter?
Business Strategy and the Environment, EarlyView.ABSTRACT This study examines the relationship between internationalization and environmental, social, and governance (ESG) controversies, focusing on whether foreign directors on corporate boards influence this relationship. Drawing on resource dependence theory, we argue that internationalization increases ESG controversies due to the complexity of ...
Mohamed Elsayed +4 more
wiley +1 more source
First order systems of odes with nonlinear nonlocal boundary conditions
Electronic Journal of Qualitative Theory of Differential Equations, 2015 In this article, we prove existence of solutions for a nonlocal boundary value problem with nonlinearity in a nonlocal condition. Our method is based upon Mawhin's coincidence theory.
Igor Kossowski, Bogdan Przeradzki
doaj +1 more source
Well-posedness of a nonlocal boundary value difference elliptic problem
, 2019 The second order of approximation two-step difference scheme for the numerical solution of a nonlocal boundary value problem for the elliptic differential equation
Allaberen Ashyralyev +3 more
core +1 more source
The solution of an initial-boundary value problem of the filtration theory with nonlocal boundary condition [PDF]
, 2014 The nonlocal initial and boundary value problem for Lavrentiev–Bitsadze equation is considered. By this problem the nonstacionary one-dimentional motion of a groundwater with horizontal stopping is modeling.
Serbina, Ludmila
core +1 more source
A Note On The Stability of Solution for Elliptic-Schrödinger Type Nonlocal Boundary Value Problem [PDF]
, 2020 In the present article, a problem for a Elliptic-Schrödinger equation with nonlocal boundary value problem is considered. The stability estimates are established for the solution of Elliptic-Schrödinger problem for nonlocal boundary problem .
Ozdemir, Yildirim, Yildirim OZDEMİR
core +1 more source
Quantization of Polaritons Confined in Dielectric Structures
Laser &Photonics Reviews, EarlyView.This study addresses the limitations of the Hopfield model of strong light‐matter coupling in the case of structured dieletrics. A method to derive quantum models in the polariton basis using Bogoliubov transformation and third quantization is introduced, demonstrating how to boost interaction strength and engineer nonlocal interactions for strongly ...
Amir Rahmani +4 more
wiley +1 more source
Қарағанды университетінің хабаршысы. Математика сериясыIt is known that V.A. Ilyin and E.I. Moiseev studied generalized nonlocal boundary value problems for the Sturm-Liouville equation, the nonlocal boundary conditions specified at the interior points of the interval under consideration. For such problems,
С.З. Джамалов +1 more
doaj +1 more source
Linear and nonlinear abstract differential equations of high order
Open Mathematics, 2015 The nonlocal boundary value problems for linear and nonlinear degenerate abstract differential equations of arbitrary order are studied. The equations have the variable coefficients and small parameters in principal part.
Shakhmurov Veli B.
doaj +1 more source