Results 81 to 90 of about 35,438 (237)

Existence of Solutions for Singular Second-Order Ordinary Differential Equations with Periodic and Deviated Nonlocal Multipoint Boundary Conditions

open access: yesJournal of Function Spaces, 2018
This paper studies the existence of continuous solutions for a class of nonlinear singular second-order ordinary differential equations subject to one of the following boundary conditions: periodic-deviated multipoint boundary conditions, periodic ...
Ahmed M. A. El-Sayed, Fatma M. Gaafar
doaj   +1 more source

Nonlocal Sturm-Liouville problems with integral terms in the boundary conditions

open access: yesElectronic Journal of Differential Equations, 2017
WOS ...
Kandemir, Mustafa, Mukhtarov, Oktay Sh.
openaire   +4 more sources

Thermal Conductance and Mass Transport of Brinkman‐Type Nanofluids Across Porous Plates: A Prabhakar‐Fractional Approach

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The paper establishes an advanced computing algorithm to investigate the thermosolutal dynamics of an electrically conductive Brinkman‐type nanofluid that moves in a porous channel, and the fluid is acted on by an inclined magnetic field exerted externally.
Urwa Shehbaz   +4 more
wiley   +1 more source

Internationalization and ESG Controversies: Do Foreign Directors on Corporate Boards Matter?

open access: yesBusiness 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

Existence and uniqueness of solution for Sturm–Liouville fractional differential equation with multi-point boundary condition via Caputo derivative

open access: yesAdvances in Difference Equations, 2019
We investigate the existence and uniqueness of a solution for a Sturm–Liouville fractional differential equation with a multi-point boundary condition via the Caputo derivative; existence and uniqueness results for the given problem are obtained via the ...
Ahmed M. A. El-Sayed, Fatma M. Gaafar
doaj   +1 more source

Nonlocal Boundary Value Problems for Riemann-Liouville Fractional Differential Inclusions with Hadamard Fractional Integral Boundary Conditions

open access: yesTaiwanese Journal of Mathematics, 2016
In this paper we study a new class of boundary value problemsconsisting of a fractional differential inclusion of Riemann-Liouville typeand Hadamard fractional integral conditions. Some new existence results forconvex as well as non-convex multivalued maps are obtained by using standardfixed point theorems. Some illustrative examples are also presented.
Ntouyas, Sotiris   +2 more
openaire   +2 more sources

Boosting Electron‐Hole Charge Separation in CO2 Photoreduction through Fluoroporphyrin‐Linked Nickel(II)‐Acetylide Frameworks

open access: yesCarbon Energy, EarlyView.
A NiII‐acetylide framework, H2TFPP‐Ni‐AF, demonstrates outstanding photocatalytic CO2 reduction performance: 13.16 mmol h−1 g−1 of CO with 97.9% selectivity. Synergistic interactions, including d‐p orbital hybridization within NiII‐bis(acetylide) moieties ( − C ≡ C−NiII(PBu3)2 − C ≡ C − ) and the efficient charge transport afforded by π‐conjugated ...
Lifen Chen   +6 more
wiley   +1 more source

Positive Solutions for a System of Fractional Differential Equations with Nonlocal Integral Boundary Conditions

open access: yesDifferential Equations and Dynamical Systems, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guezane-Lakoud, Assia   +1 more
openaire   +3 more sources

The Future of Foundation Machine Learning Potentials and DFT in Homogeneous Catalysis: Competition or Synergy?

open access: yesChemistry – A European Journal, EarlyView.
Machine‐learning potentials are increasingly taking on the exploratory tasks of homogeneous catalysis, enabling rapid conformer sampling and reaction‐space mapping. However, when selectivity depends on subtle electronic effects, electronic‐structure methods remain essential.
Maxime Ferrer   +3 more
wiley   +1 more source

An inverse time-dependent source problem for a time-fractional diffusion equation with nonlocal boundary conditions

open access: yesMiskolc Mathematical Notes
In this paper, we investigate an inverse time-dependent source problem for a time-fractional diffusion equation with nonlocal boundary and integral over-determination conditions. The fractional derivative is described in the generalized Caputo sense. The
Farid Mihoubi, Brahim Nouiri
doaj   +1 more source

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