Results 121 to 130 of about 193,645 (277)
On nonlocal boundary value problems for elliptic-Schrödinger equations
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
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
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
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
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
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
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
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
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
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

