Results 121 to 130 of about 193,645 (277)

On nonlocal boundary value problems for elliptic-Schrödinger equations

open access: yesAIP Conference Proceedings, 2015
The nonlocal boundary value problem for elliptic-Schrodinger equations is considered. The stability estimates for the solution of this problem are presented. In applications, the stability estimates of the mixed type boundary value problems for elliptic-Schrodinger equations are obtained.
Özdemir, Yıldırım, Eser, Mecra
openaire   +2 more sources

Diffusion model‐regularized implicit neural representation for computed tomography metal artifact reduction

open access: yesQuantitative Biology, Volume 14, Issue 2, June 2026.
Abstract Computed tomography (CT) images are often severely corrupted by artifacts in the presence of metals. Existing supervised metal artifact reduction (MAR) approaches suffer from performance instability on known data due to their reliance on limited paired metal‐clean data, which limits their clinical applicability. Moreover, existing unsupervised
Jie Wen   +3 more
wiley   +1 more source

Nonlocal boundary value problems with transmission conditions

open access: yesGulf Journal of Mathematics, 2015
We consider nonlocal boundary value problems which includes elliptic differential operator equations of the second order with discontinuous coefficients and nonlocal boundary conditions together with transmission conditions. We establish Fredholmness for these nonlocal boundary value problems.
openaire   +1 more source

On the η-invariant of certain nonlocal boundary value problems

open access: yesDuke Mathematical Journal, 1999
LaTeX, 35 pages, final version as of 14 Nov 1997, to appear in Duke Math ...
Brüning, Jochen, Lesch, Matthias
openaire   +3 more sources

Expletive Constructions and Agreement in Labeling Theory

open access: yesStudia Linguistica, Volume 80, Issue 1, April 2026.
ABSTRACT In this paper, I explain how agreement occurs in English expletive constructions, in accord with recent work in the Minimalist Program. I develop a proposal that relies on feature unification and probe‐goal agreement, as well as the notion that internal merge of arguments generally applies freely.
Jason Ginsburg
wiley   +1 more source

POSITIVE SOLUTIONS FOR A SINGULAR FOURTH ORDER NONLOCAL BOUNDARY VALUE PROBLEM

open access: yes, 2016
Positive solutions are obtained for the fourth order nonlocal boundary value problem, u (4) = f(x,u), 0 < x < 1, u(0) = u '' (0) = u ' (1) = u '' (1) − u '' (2/3) = 0, where f(x,y) is singular at x = 0,x = 1,y = 0, and may be singular at y = ∞.
John M. Davis   +3 more
semanticscholar   +1 more source

Existence Results for Some n-Dimensional Nonlocal Boundary Value Problems

open access: yesJournal of Mathematical Analysis and Applications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Karakostas, G. L., Tsamatos, P. C.
openaire   +2 more sources

Tests of Exponential Stabilization Through Floquet Theory and Act‐And‐Wait Control

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 4, Page 3303-3316, 15 March 2026.
ABSTRACT In this paper, we propose tests of exponential stability based on a version of the Floquet theory for delay differential equations of the first order. Our approach allows researchers to preserve the order of equation and to use the classical methods of the Floquet theory for ordinary differential equations.
Alexander Domoshnitsky, Tsahi Shavit
wiley   +1 more source

On the initial-boundary value problem for a nonlocal parabolic equation with nonlocal boundary condition

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2018
We consider a nonlinear nonlocal parabolic equation ut = Δu + a(x,t)ur∫Ωup(y,t)dy - b(x,t)uq for (x,t) ∈ Ω × (0,+∞) with nonlinear nonlocal boundary condition u(x,t)|∂Ω × (0,+∞) = ∫Ωk(x,y,t)ul(y,t)dy and initial data u(x,0) = u0(x), x ∈ Ω, where r, p, q,
Alexander L. Gladkov   +1 more
doaj  

Nonlocal boundary value problem for second order abstract elliptic differential equation

open access: yesAbstract and Applied Analysis, 1999
We establish conditions that guarantee Fredholm solvability in the Banach space Lp of nonlocal boundary value problems for elliptic abstract differential equations of the second order in an interval.
Mohamed Denche
doaj   +1 more source

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