Results 21 to 30 of about 3,885,751 (299)

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

The Obata equation with Robin boundary condition [PDF]

open access: yesRevista Matemática Iberoamericana, 2020
We study the Obata equation with Robin boundary condition \partial f/\partial \nu + af = 0 on manifolds with boundary, where a is a non-zero constant.
Chen, Xuezhang, Lai, Mijia, Wang, Fang
openaire   +3 more sources

Waveguides with Combined Dirichlet and Robin Boundary Conditions [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2006
20 pages, LaTeX with 1 EPS figure; to appear in Mathematical Physics, Analysis and ...
Freitas, P., Krejčiřík, D.
openaire   +3 more sources

Asymptotic analysis of perturbed Robin problems in a planar domain

open access: yesElectronic Journal of Differential Equations, 2023
We consider a perforated domain \(\Omega(\epsilon)\) of \(\mathbb{R}^2\) with a small hole of size \(\epsilon\) and we study the behavior of the solution of a mixed Neumann-Robin problem in \(\Omega(\epsilon)\) as the size \(\epsilon\) of the small hole
Paolo Musolino   +2 more
doaj   +1 more source

Size estimates of unknown boundaries with a Robin-type condition [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2017
We deal with the problem of determining an unknown part of the boundary of an electrical conductor that is inaccessible for external observation and where a corrosion process is going on. We obtain estimates of the size of this damaged region from above and below.
DI CRISTO, MICHELE   +2 more
openaire   +3 more sources

On the Asymptotic Behavior of Eigenvalues and Eigenfunctions of the Robin Problem with Large Parameter

open access: yesMathematical Modelling and Analysis, 2017
We consider the eigenvalue problem with Robin boundary condition ∆u + λu = 0 in Ω, ∂u/∂ν + αu = 0 on ∂Ω, where Ω ⊂ Rn , n ≥ 2 is a bounded domain with a smooth boundary, ν is the outward unit normal, α is a real parameter.
Alexey V. Filinovskiy
doaj   +1 more source

Stability for the Determination of Unknown Boundary and Impedance with a Robin Boundary Condition [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2010
We consider an inverse problem arising in corrosion detection. We prove a stability result of logarithmic type for the determination of the corroded portion of the boundary and impedance by two measurements on the accessible portion of the boundary.
openaire   +4 more sources

Temperature on rods with Robin boundary conditions

open access: yesJournal of Mathematical Analysis and Applications, 2023
We consider solutions $u_f$ to the one-dimensional Robin problem with the heat source $f\in L^1[-π,π]$ and Robin parameter $α>0$.
Betsakos, Dimitrios, Solynin, Alexander
openaire   +3 more sources

Hairy black holes in AdS with Robin boundary conditions

open access: yesJournal of High Energy Physics, 2023
We study hairy black holes in Einstein-Maxwell-complex scalar theory in four-dimensional asymptotically global anti-de Sitter (AdS) spacetime when the Robin boundary conditions are imposed on the scalar field.
Tomohiro Harada   +3 more
doaj   +1 more source

Hybrid Method for Inverse Elastic Obstacle Scattering Problems

open access: yesMathematics, 2023
The problem of determining the shape of an object from knowledge of the far-field of a single incident wave in two-dimensional elasticity was considered. We applied an iterative hybrid method to tackle this problem. An advantage of this method is that it
Yuhan Yin, Juan Liu
doaj   +1 more source

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