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An inhomogeneous singular perturbation problem for the p(x)-Laplacian
(Pergamon-Elsevier Science Ltd, 2016-06)
In this paper we study the following singular perturbation problem for the pϵ(x)-Laplacian: Δpϵ (x)uϵ:=div(|∇uϵ(x)|pϵ (x)-2∇ uϵ)=βϵ(uϵ)+fϵ,uϵ≥0, (Pϵ(fϵ, pϵ)) where ϵ>0, βϵ(s)=1/ϵβ(s/ϵ), with β a Lipschitz function satisfying ...
Cavity problems in discontinuous media
(Springer, 2016)
We study cavitation type equations, div(a(i j) (X)del u) similar to delta(0)(u), for bounded, measurable elliptic media a(i j) (X). De Giorgi-Nash-Moser theory assures that solutions are alpha-Holder continuous within its ...
Critical points of the regular part of the harmonic green function with robin boundary conditionJOURNAL OF FUNCTIONAL ANALYSIS
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2016)
Equations for the Missing Boundary Values in the Hamiltonian Formulation of Optimal Control Problems
(Springer/Plenum Publishers, 2011-02)
Partial differential equations for the unknown final state and initial costate arising in the Hamiltonian formulation of regular optimal control problems with a quadratic final penalty are found. It is shown that the missing ...
Extração e regularização de contornos de telhados de edificações a partir de dados LiDAR usando o algoritmo alpha-shape e CD-Spline
(Universidade Estadual Paulista (Unesp), 2019-04-30)
Esta tese trata da extração e regularização automática de contornos de telhados de edificações obtidos a partir de dados LiDAR (Light Detection and Ranging) adquiridos por sistema de varredura a LASER (Light Amplification ...
On the Properties of Quasi-periodic Boundary Integral Operators for the Helmholtz Equation.
We study the mapping properties of boundary integral oper_x005F_x0002_ators arising when solving two-dimensional, time-harmonic waves scat_x005F_x0002_tered by periodic domains. For domains assumed to be at least Lipschitz ...
Boundary crisis and transient in a dissipative relativistic standard map
(Elsevier B.V., 2011-09-05)
Some dynamical properties for a problem concerning the acceleration of particles in a wave packet are studied. The model is described in terms of a two-dimensional nonlinear map obtained from a Hamiltonian which describes ...
Concentration for an elliptic equation with singular nonlinearity
(Gauthier-villars/editions ElsevierParisFrança, 2012)
Characterization of atmospheric structures observed by a VHF MST-type radar in the troposphere over Santa Cruz, Costa Rica
(2019)
Results from the frst VHF profler research radar in Costa Rica, operating at a central radar frequency of 46.6 MHz, are presented. Emphasis has been on studies of scattering layers detected in the altitude range 1–6 km, ...