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Lyapunov-type inequalities for quasilinear elliptic equations with Robin boundary condition [PDF]

open access: goldJournal of Inequalities and Applications, 2017
The aim of this study is to prove Lyapunov-type inequalities for a quasilinear elliptic equation in R 2 $\mathbb{R}^{2}$ . Also the lower bound for the first positive eigenvalue of the boundary value problem is obtained.
Ülkü Dinlemez Kantar, Tülay Özden
doaj   +4 more sources

Particle Creation by a Moving Boundary with Robin Boundary Condition [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2006
We consider a massless scalar field in 1+1 dimensions satisfying a Robin boundary condition (BC) at a non-relativistic moving boundary. We derive a Bogoliubov transformation between input and output bosonic field operators, which allows us to calculate ...
  +18 more
core   +3 more sources

Maximal regularity for non-autonomous Robin boundary conditions [PDF]

open access: yesMathematische Nachrichten, 2015
We consider a non-autonomous Cauchy problem involving linear operators associated with time-dependent forms $a(t;.,.):V\times V\to {\mathbb{C}}$ where $V$ and $H$ are Hilbert spaces such that $V$ is continuously embedded in $H$.
Arendt, Wolfgang, Monniaux, Sylvie
core   +3 more sources

Free Boundary Cluster with Robin Condition on the Transmission Interface

open access: greenCalculus of Variations and Partial Differential Equations, 2023
We formulate and study a variational two-phase free boundary problem with Robin condition on the interface between the two phases, and we prove existence and regularity of solutions in dimension ...
Domenico Angelo La Manna   +2 more
openalex   +5 more sources

Resonant (p,q)-equations with Robin boundary condition

open access: yesElectronic Journal of Differential Equations, 2018
We consider a nonlinear nonhomogeneous Robin problem that has the sum of a p-Laplacian and a q-Laplacian (a (p,q)-equation). The reaction term is a Caratheodory function which is resonant at $\pm\infty$ with respect to any nonprincipal variational ...
Michael E. Filippakis   +1 more
doaj   +2 more sources

The Bilaplacian with Robin Boundary Conditions [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2022
We introduce Robin boundary conditions for biharmonic operators, which are a model for elastically supported plates and are closely related to the study of spaces of traces of Sobolev functions. We study the dependence of the operator, its eigenvalues, and eigenfunctions on the Robin parameters. We show in particular that when the parameters go to plus
Davide Buoso, James B. Kennedy
openaire   +4 more sources

Application of a Robin boundary condition to surface waves

open access: yesFrontiers in Marine Science, 2023
Surface effects on deep-water gravity waves are investigated theoretically by the application of a Robin boundary condition with a complex Robin parameter, R=Rr+iRi.
Kai Håkon Christensen   +2 more
doaj   +1 more source

Characterization of the Mean First-Passage Time Function Subject to Advection in Annular-like Domains

open access: yesMathematics, 2023
Cell migration in a biological medium towards a blood vessel is modeled, as a random process, sucessively inside an annulus (two-dimensional domain) and an annular cylinder (three-dimensional domain).
Hélia Serrano   +1 more
doaj   +1 more source

A Variational Formulation for Fins with Nonzero Contact Thermal Resistance at the Base

open access: yesAxioms, 2023
This paper considers the steady-state heat transfer process in a fin with a Robin boundary condition at the base (instead of the usual Dirichlet boundary condition at the base). Robin boundary condition models the effect of the thermal resistance between
Rogério Martins Saldanha da Gama   +3 more
doaj   +1 more source

Singularly perturbed robin type boundary value problems with discontinuous source term in geophysical fluid dynamics [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2021
Singularly perturbed robin type boundary value problems with discontinuous source terms applicable in geophysical fluid are considered. Due to the discontinuity, interior layers appear in the solution.
B.M. Abagero, G.F. Duressa, H.G. Debela
doaj   +1 more source

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