Results 51 to 60 of about 13,240 (282)

FDM for Elliptic Equations with Bitsadze-Samarskii-Dirichlet Conditions

open access: yesAbstract and Applied Analysis, 2012
A numerical method is proposed for solving nonlocal boundary value problem for the multidimensional elliptic partial differential equation with the Bitsadze-Samarskii-Dirichlet condition.
Allaberen Ashyralyev   +1 more
doaj   +1 more source

Existence of the solution to a nonlocal-in-time evolutional problem

open access: yesNonlinear Analysis, 2014
This work is devoted to the study of a nonlocal-in-time evolutional problem for the first order differential equation in Banach space. Our primary approach, although stems from the convenient technique based on the reduction of a nonlocal problem to its ...
Volodymyr Makarov   +2 more
doaj   +1 more source

On nonlocal problems for ordinary differential equations and on a nonlocal parabolic transmission problem [PDF]

open access: yesInternational Journal of Stochastic Analysis, 1998
In the present paper we study nonlocal problems for ordinary differential equations with a discontinuous coefficient for the high order derivative. We establish sufficient conditions, known as regularity conditions, which guarantee the coerciveness for both the space variable and the spectral parameter, as well as guarantee the completeness of the ...
openaire   +2 more sources

Discussion Record of the Workshop on Nonlocal Transport [PDF]

open access: yes, 1997
The discussion on the problem of the transient response and nonlocal transport is reported. Problem of the transient response is surveyed, and several approaches are reviewed. The formulation based on the nonlocal transport is discussed.
INOUE, Sanae   +6 more
core  

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

open access: yesAdvanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel   +3 more
wiley   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

open access: yesAdvanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang   +3 more
wiley   +1 more source

The nonlocal boundary problem with perturbations of antiperiodicity conditions for the eliptic equation with constant coefficients

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2018
In this article, we investigate a problem with nonlocal boundary conditions which are perturbations of antiperiodical conditions in bounded $m$-dimensional parallelepiped using Fourier method. We describe properties of a transformation operator $R:L_2(G)
Ya.O. Baranetskij   +3 more
doaj   +1 more source

On a nonlocal elliptic problem [PDF]

open access: yesApplicationes Mathematicae, 1999
Summary: We study stationary solutions of the system \[ u_t =\nabla \cdot \bigg({m-1 \over m} \nabla u^m + u \nabla \varphi \bigg), \quad \;m>1,\quad\;{\varDelta} \varphi = \pm u, \] defined in a bounded domain \({\varOmega}\) of \({\mathbb R}^n\). The physical interpretation of the above system comes from the porous medium theory and semiconductor ...
openaire   +2 more sources

How Video‐Based Information Affects Farmers' Willingness to Pay for Drone Services

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Professional service for digital technology like agricultural drones lowers transaction costs and scope thresholds for smallholders. Meanwhile, perceptual adoption barriers remain underexplored. We conduct a two‐stage choice experiment with a randomized video‐based information treatment among 384 Chinese crop farmers to measure its effect on ...
Hua Zhang   +4 more
wiley   +1 more source

Sturm–Liouville problem with two point nonlocal second type boundary condition

open access: yesLietuvos Matematikos Rinkinys, 2005
The Sturm–Liouville problemwith one classical boundary condition and other two point second type nonlocal boundary conditions is considered in this paper. Three cases of nonlocal conditions are investigated.
Sigita Pečiulytė, Artūras Štikonas
doaj   +3 more sources

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