Results 51 to 60 of about 13,234 (254)

Singular perturbation in a nonlocal diffusion problem [PDF]

open access: yes, 2020
. We study a singular perturbation problem for a nonlocal evolution operator. The problem appears in the analysis of the propagation of flames in the high activation energy limit, when admitting nonlocal effects.
Noemi Wolanski, Claudia Lederman
core  

Uniqueness Criterion for Solution of Abstract Nonlocal Cauchy Problem [PDF]

open access: yes, 1993
The aim of the paper is to prove an uniqueness criterion for a solution of an abstract nonlocal Cauchy problem. A dissipative operator in the nonlocal problem and an arbitrary functional in the nonlocal condition are considered.
Byszewski, Ludwik
core   +2 more sources

Nonlocal elliptic equation in Holder space and the martingale problem [PDF]

open access: yes, 2022
Ling C, Zhao G. Nonlocal elliptic equation in Holder space and the martingale problem. Journal of Differential Equations. 2022;314:653-699.The well-posedness of nonlocal elliptic equation with singular drift is investigated in Besov-Holder spaces.
Zhao, Guohuan, Ling, Chengcheng
core   +1 more source

On positive eigenfunctions of Sturm‐Liouville problem with nonlocal two‐point boundary condition

open access: yesMathematical Modelling and Analysis, 2007
Positive eigenvalues and corresponding eigenfunctions of the linear Sturm‐Liouville problem with one classical boundary condition and another nonlocal two‐point boundary condition are considered in this paper.
Sigita Pečiulytė, Artūras Štikonas
doaj   +1 more source

An exciting Approach to Theoretical Spectroscopy

open access: yesAdvanced Science, EarlyView.
ABSTRACT Theoretical spectroscopy, and more generally, electronic‐structure theory, are powerful concepts for describing the complex many‐body interactions in materials. They cover methods from ground‐state properties to lattice excitations and light‐matter interaction, including time‐resolved variants.
Martí Raya‐Moreno   +29 more
wiley   +1 more source

On the spectrum of a stationary problem with nonlocal integral type boundary condition

open access: yesLietuvos Matematikos Rinkinys, 2004
We investigated a eigenvalue problem for simple second order ordinary differential equation with one inte­gral type nonlocal boundary condition. The eigenvalues and eigenfunctions of such problem are depending on few parameters in the nonlocal boundary ...
Sigita Pečiulytė   +2 more
doaj   +3 more sources

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

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

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

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