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Mostrando ítems 771-780 de 818
Artículo
Some controllability results for linear viscoelastic fluids
(Society for Industrial and Applied Mathematics, 2012)
We analyze the controllability properties of systems which provide a description, at first approximation, of a kind of viscoelastic fluid. We consider linear Maxwell fluids. First, we establish the large time approximate-finite ...
Artículo
Heat flow through a thin cooled pipe filled with micropolar fluid
(Polish Society of Theoretical & Applied Mechanics, 2015)
In this paper, a non-isothermal flow of a micropolar fluid in a thin pipe with circular cross-section is considered. The fluid in the pipe is cooled by the exterior medium and the heat exchange on the lateral part of the ...
Artículo
Relaxation of a control problem in the coefficients with a functional of quadratic growth in the gradient
(Society for Industrial and Applied Mathematics, 2008)
We study an optimal design problem consisting in mixing two anisotropic (electric or thermal) materials in order to minimize a functional depending on the gradient of the state. It is known that this type of problem has ...
Artículo
Global stabilization of fixed points using predictive control
(AIP Publishing, 2010-06)
We analyze the global stability properties of some methods of predictive control. We particularly focus on the optimal control function introduced by de Sousa Vieira and Lichtenberg [Phys. Rev. E54, 1200 (1996)]. We ...
Artículo
The behavior of a beam fixed on small sets of one of its extremities
(AIMS, 2014-10)
In this paper we study the asymptotic behavior of the solution of an anisotropic, heterogeneous, linearized elasticity system in a thin cylinder (a beam). The beam is fixed (homogeneous Dirichlet boundary condition) on the ...
Artículo
Numerical analysis of a finite element projection-based VMS turbulence model with wall laws
(Elsevier, 2014-11-13)
This paper deals with the numerical analysis of a finite element projection-based VMS turbulence model that includes general non-linear wall laws. Only a single mesh and interpolation operators on a virtual coarser mesh ...
Artículo
Analysis and optimal control of some solidification processes
(AIMS, 2014-10-04)
In this paper we consider a mathematical model that describes the solidi cation of a binary alloy. We prove some existence and uniqueness results for a regularized problem, depending on a small parameter ". We also analyze ...
Artículo
Numerical approximations for a nonlocal evolution equation
(SIAM, 2011-01-01)
In this paper we study numerical approximations of continuous solutions to the nonlocal p-Laplacian type diffusion equation, ut(t, x) = Ω J(x − y)|u(t, y) − u(t, x)| p−2(u(t, y) − u(t, x)) dy. First, we find that a ...
Artículo
Comentarios sobre la reunión de Decanos y Directores de Departamentos de Matemáticas
(Sociedad Española de Matemática Aplicada, 2000)