Well Posedness
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. A Note on the Well-Posedness of Control Complex Ginzburg-Landau Equations in Zhidkov Spaces
ABSTRACT In this note, we consider the Complex Ginzburg-Landau equations with a bilinear control term in the real line. We prove well-posedness results concerned with the initial value problem for these equations in Zhidkov spaces using splitting methods.
Trends in Computational and Applied Mathematics. Publicado em: 2022
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2. A Model of Social Distancing for Interacting Age-Distributed Multi-Populations: An Analysis of Students’ In-Person Return to Schools
ABSTRACT Because of the current scenario of the SARS-CoV-2 (COVID-19) pandemic in Brazil, whose vaccination campaign is in its initial stage, government authorities have pointed towards the complete reopening of the economy. And recently, for the in-personal return of classroom teaching in schools. Given the family relationship, one of the questions that rem
Trends in Computational and Applied Mathematics. Publicado em: 2022
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3. A Novel In Silico Monte Carlo Approach to Optimize a PSD Estimation Problem. Generation of Data Fusion Experiment Rules
ABSTRACT This article analyzes the performance of combining information from Scanning Electron Microscopy (SEM) micrographs with Static Light Scattering (SLS) measurements for retrieving the so-called Particle Size Distribution (PSD) in terms of experimental features. The corresponding data fusion is implemented using a novel Monte Carlo-based method consist
Trends in Computational and Applied Mathematics. Publicado em: 2022
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4. Uma abordagem via transformada de Fourier para as equações de Navier-Stokes : boa-colocação e comportamento assintótico / An approach via Fourier transform for the Navier-Stokes equetions : well-posedness and asymptotic behavior
Estudamos existência, unicidade, dependência contínua nos dados e comportamento assint ótico de soluções globais das equações de Navier-Stokes (com n >= 3), sob condições de pequenez no dado inicial e na força externa, em um espaço de distribuições (PMa) cuja construção é baseada na transformada de Fourier. Este espaço contém funções for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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5. A comparison of hyperbolic solvers II: ausm-type and Hybrid Lax-Wendroff-Lax-Friedrichs methods for two-phase flows
Riemann-solver based schemes are difficult and sometimes impossible to be applied for complex flows due to the required average state. Other methods that do not use Riemann-solvers are best suited for such cases. Among them, AUSM+, AUSMDV and the recently proposed Hybrid Lax-Friedrichs-Lax-Wendroff (HLFW) have been extended to two-phase flows. The eigenstruc
Brazilian Journal of Chemical Engineering. Publicado em: 2010-03
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6. Existence and stability of solutions of type solitary waves in equation Korteweg-de Vries (KdV) / Existência e estabilidade de Soluções do tipo ondas solitárias para a equação Korteweg-de Vries (KdV)
In this paper we demonstrate a theorem of Well-Posedness Local and followed by Well-Posedness Global Equation Korteweg-de Vries in Sobolev spaces by making use of conservation laws of this equation, the properties of the group associated with it, and some estimates obtained by Kenig , Ponce and Vega in [6]. We also demonstrated the existence and stability of
Publicado em: 2009
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7. O problema de Cauchy para a equação não linear de Schrödinger com dados não nulos no infinito. / The Cauchy Problem associated to the nonlinear Schrödinger equation with data nonvanishing at infinity.
Neste trabalho fazemos um estudo do Problema de Cauchy associado à equação não linear de Schrödinger com dados iniciais não nulos no infinito. No primeiro capítulo, apresentamos os espaços de Zhidkov em uma dimensão, e mostramos algumas de suas propriedades. No segundo capítulo, provamos que o operador de Schrödinger é um grupo de operadores fort
Publicado em: 2009
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8. Existencia e estabilidade de ondas viajantes periodicas para alguns modelos dispersivos / Existence and stability of periodic travelling waves for some dispersive models
The goal of this thesis is to study the properties of solutions of some dispersive differential equations. First, we develop a local and global well-posedness theory for the regularized Benjamin-Ono equation in the periodic setting, then, we show that the Cauchy problem for this equation (in both periodic and nonperiodic cases) cannot be solved by an iterati
Publicado em: 2009
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9. O problema de Cauchy para um sistema de equações do tipo Schrodinger não linear de terceira ordem / The Cauchy problem associated to a system of coupled third-order nonlinear Schrodinger equation
In this work we study the Cauchy problem associated to a system of coupled third-order nonlinear Schrodinger equation. We establish local well-posedness results for the problem with data in Sobolev spaces Hs(R) x Hs(R), s >or = 1/4 and in the periodic case Hs(T)xHs(T), s >or = 1/2. In the particular case ... Note: The complete abstract is available with the
Publicado em: 2007
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10. O problema de Cauchy para o sistema de Liu-Kubota-Ko
ln this work we consider the initial value problem for the Liu-Kubota-Ko system {Ut + auux - 1 1 (MHl) Ux - /2 (MH2) UX + /2 (NH2) VX = O Vt + bvvx -/3 (MH3) Vx -/4 (.1 vfH2) Vx + /4 (NHJ Ux = O u (x, O) - Uo E H:, s >J v (x, O) - Vo E H , s >"2 (LKK) where the symbol of the operator NH2 is n(k) = sinh_H2 and the symbol of the operator MHi is mi(k) = kcoth(k
Publicado em: 2002