Results 1 to 10 of about 1,823 (241)

Approximate Solution of Inverse Problem for Elliptic Equation with Overdetermination [PDF]

open access: yesAbstract and Applied Analysis, 2013
A …finite difference method for the approximate solution of the inverse problem for the multidimensional elliptic equation with overdetermination is applied.
Charyyar Ashyralyyev, Mutlu Dedeturk
doaj   +3 more sources

Uncertainty Quantification and Weak Approximation of an Elliptic Inverse Problem [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2011
We consider the inverse problem of determining the permeability from the pressure in a Darcy model of flow in a porous medium. Mathematically the problem is to find the diffusion coefficient for a linear uniformly elliptic partial differential equation in divergence form, in a bounded domain in dimension $d \le 3$, from measurements of the solution in ...
Andrew Stuart
exaly   +5 more sources

Uniqueness of semilinear elliptic inverse problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We consider the uniqueness of the inverse problem for a semilinear elliptic differential equation with Dirichlet condition. The necessary and sufficient condition of unique solution is obtained.
Chaochun Qu, Ping Wang
doaj   +2 more sources

On an Inverse Problem for Quasi-Linear Elliptic Equation [PDF]

open access: yesJournal of Siberian Federal University - Mathematics and Physics, 2015
Summary: The identification of an unknown constant coefficient in the main term of the partial differential equation \(- kM\psi(u) + g(x) u = f(x)\) with the Dirichlet boundary condition is investigated. Here \(\psi(u)\) is a nonlinear increasing function of \(u, M\) is a linear self-adjoint elliptic operator of the second order.
exaly   +5 more sources

On an inverse boundary-value problem for a second-order elliptic equation with non-classical boundary conditions

open access: yesCumhuriyet Science Journal, 2020
An inverse boundary value problem for a second-order elliptic equation with periodic and integral condition is investigated. The problem is considered in a rectangular domain.
Nergiz Heydarzade   +2 more
doaj   +1 more source

Kernel Methods for Bayesian Elliptic Inverse Problems on Manifolds [PDF]

open access: yesSIAM/ASA Journal on Uncertainty Quantification, 2020
This paper investigates the formulation and implementation of Bayesian inverse problems to learn input parameters of partial differential equations (PDEs) defined on manifolds. Specifically, we study the inverse problem of determining the diffusion coefficient of a second-order elliptic PDE on a closed manifold from noisy measurements of the solution ...
John Harlim   +2 more
openaire   +2 more sources

Boundary value problem for mixed type equation of the third order with periodic conditions

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The problem for the equation of the mixed elliptic-hyperbolic type with nonlocal boundary conditions is viewed. This problem is reduced to the inverse problem for elliptic-hyperbolic equation with unknown right-hand parts. The criterion of the uniqueness
G. Yu. Udalova, K. B. Sabitov
doaj   +3 more sources

Existence of solutions for a nonlinear elliptic Dirichlet boundary value problem with an inverse square potential

open access: yesBoundary Value Problems, 2006
Via the linking theorem, the existence of nontrivial solutions for a nonlinear elliptic Dirichlet boundary value problem with an inverse square potential is proved.
Yongqing Li, Shenghua Weng
doaj   +2 more sources

Iterative regularization for elliptic inverse problems

open access: yesComputers & Mathematics with Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Akhtar A. Khan, Behzad Djafari Rouhani
openaire   +1 more source

On Solvability of An Inverse Boundary Value Problem For The Elliptic Equation Of Second Order With Periodic And Integral Condition

open access: yesCumhuriyet Science Journal, 2019
An inverse boundary value problem for asecond-order elliptic equation with periodic and integral condition isinvestigated. The definition of a classical solution of the problem isintroduced.
N.a. Heydarzade   +2 more
doaj   +1 more source

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