Results 21 to 30 of about 6,239,552 (226)

Inverse scattering for an exterior Dirichlet problem [PDF]

open access: yesQuarterly of Applied Mathematics, 1982
In this paper we consider scattering due to a metallic cylinder which is in the field of a wire carrying a periodic current. The aim of the paper is to obtain information such as the location and shape of the cylinder with a knowledge of a far-field measurement in between the wire and the cylinder.
openaire   +2 more sources

On the exterior Dirichlet problem for Hessian quotient equations [PDF]

open access: yesJournal of Differential Equations, 2018
In this paper, we establish the existence and uniqueness theorem for solutions of the exterior Dirichlet problem for Hessian quotient equations with prescribed asymptotic behavior at infinity. This extends the previous related results on the Monge-Ampère equations and on the Hessian equations, and rearranges them in a systematic way.
Li, Dongsheng, Li, Zhisu
openaire   +3 more sources

On the exterior Dirichlet problem for Hessian equations

open access: yesTransactions of the American Mathematical Society, 2014
In this paper, we establish a theorem on the existence of the solutions of the exterior Dirichlet problem for Hessian equations with prescribed asymptotic behavior at infinity. This extends a result of Caffarelli and Li (2003) for the Monge-Ampère equation to Hessian equations.
Bao, Jiguang, Li, Haigang, Li, Yanyan
openaire   +3 more sources

Trial methods for Bernoulli's free boundary problem [PDF]

open access: yes, 2014
Free boundary problems deal with solving partial differential equations in a domain, a part of whose boundary is unknown – the so-called free boundary. Beside the standard boundary conditions that are needed in order to solve the partial differential ...
Mitrou, Giannoula
core   +1 more source

Revisiting an analytical solution for the three-shell spherical human head model in electroencephalography

open access: yesPartial Differential Equations in Applied Mathematics, 2021
The complete three-shell spherical human head model in electroencephalography (EEG) is revisited and an analytical solution of the forward problem is derived. The introduced geometrical model involves four concentric spheres that represent the successive
A. Papargiri   +4 more
doaj   +1 more source

Trace formulae and singular values of resolvent power differences of self-adjoint elliptic operators [PDF]

open access: yes, 2013
In this note self-adjoint realizations of second order elliptic differential expressions with non-local Robin boundary conditions on a domain Ω⊂Rn with smooth compact boundary are studied.  A Schatten--von Neumann type estimate for the singular values of
Lotoreichik, Vladimir   +2 more
core   +2 more sources

On the First-Order Shape Derivative of the Kohn-Vogelius Cost Functional of the Bernoulli Problem

open access: yesAbstract and Applied Analysis, 2013
The exterior Bernoulli free boundary problem is being considered. The solution to the problem is studied via shape optimization techniques. The goal is to determine a domain having a specific regularity that gives a minimum value for the Kohn-Vogelius ...
Jerico B. Bacani, Gunther Peichl
doaj   +1 more source

Existence Solutions for a Singular Nonlinear Problem with Dirichlet Boundary Conditions on Exterior Domains [PDF]

open access: yesKirkuk Journal of Science
This paper proves the existence of solutions that solve the Nonlinear Partial differential equation on the exterior of the ball centered at the origin in R^{N} with radius R > 0, with boundary conditions u = 0 on the boundary, and u ( x ) approaches 0
Mageed Ali, Joseph Iaia
doaj   +1 more source

Numerical Experiments of the Dual Null Field Method for Dirichlet Problems of Laplace’s Equation in Elliptic Domains with Elliptic Holes

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
Dual techniques have been used in many engineering papers to deal with singularity and ill-conditioning of the boundary element method (BEM). In the first part of the two-part article, our efforts were focused on studying the theoretical aspects of this ...
Zi-Cai Li   +4 more
doaj   +1 more source

Exterior Dirichlet and Neumann Problems in Domains with Random Boundaries

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pham, DT, Tran, T, Dinh, D, Chernov, A
openaire   +2 more sources

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