Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Selgas, Virginia"'
We propose a modified Trefftz Discontinuous Galerkin (TDG) method for approximating a time-harmonic acoustic scattering problem in an infinitely elongated waveguide. In the waveguide we suppose there is a bounded, penetrable and possibly absorbing sc
Externí odkaz:
http://arxiv.org/abs/2408.14833
The time domain linear sampling method (TD-LSM) solves inverse scattering problems using time domain data by creating an indicator function for the support of the unknown scatterer. It involves only solving a linear integral equation called the near-
Externí odkaz:
http://arxiv.org/abs/2110.07398
Publikováno v:
SIAM J. Appl. Math. 81(6) (2021), 2433--2456
This paper is devoted to studying impedance eigenvalues (that is, eigenvalues of a particular Dirichlet-to-Neumann map) for the time harmonic linear elastic wave problem, and their potential use as target-signatures for fluid-solid interaction proble
Externí odkaz:
http://arxiv.org/abs/2103.14097
We consider the problem of determining the shape and location of an unknown penetrable object in a perfectly conducting electromagnetic waveguide. The inverse problem is posed in the frequency domain and uses multistatic data in the near field. In pa
Externí odkaz:
http://arxiv.org/abs/1811.03366
We show how a Trefftz Discontinuous Galerkin (TDG) method for the displacement form of the Helmholtz equation can be used to approximate problems having a generalized impedance boundary condition (GIBC) involving surface derivatives of the solution.
Externí odkaz:
http://arxiv.org/abs/1709.04948
Autor:
Galiano, Gonzalo, Selgas, Virginia
Publikováno v:
Comput Math Appl, 70(12) (2015) 2933-2945
Starting from the dynamical system model capturing the splitting-differentiation process of populations, we extend this notion to show how the speciation mechanism from a single species leads to the consideration of several well known evolution cross
Externí odkaz:
http://arxiv.org/abs/1510.07966
Autor:
Galiano, Gonzalo, Selgas, Virginia
Publikováno v:
Appl Numer Math 95 (2015) 229-237
We use a deterministic particle method to produce numerical approximations to the solutions of an evolution cross-diffusion problem for two populations. According to the values of the diffusion parameters related to the intra and inter-population rep
Externí odkaz:
http://arxiv.org/abs/1311.3264
Autor:
Galiano, Gonzalo, Selgas, Virginia
Publikováno v:
Nonlinear Anal Real World App 18 (2014) 34-49
We prove the existence of solutions of a cross-diffusion parabolic population problem. The system of partial differential equations is deduced as the limit equations satisfied by the densities corresponding to an interacting particles system modeled
Externí odkaz:
http://arxiv.org/abs/1311.3276
In this paper we present a self-contained variational theory of the layer potentials for the Stokes problem on Lipschitz boundaries. We use these weak definitions to show how to prove the main theorems about the associated Calder\'on projector. Final
Externí odkaz:
http://arxiv.org/abs/1303.4299
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.