• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2
  • 1
  • Tagged with
  • 3
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

O problema de Cauchy para as equações KdV e mKdV / The Cauchy problem for KdV and mKdV equations

Santos, Carlos Alberto Silva dos 12 February 2009 (has links)
In this work we will demonstrate that the Cauchy problem associated with the Korteweg-de Vries equation, denoted by KdV, and Korteweg-de Vries modified equation, denoted by mKdV, with initial data in the space of Sobolev Hs(|R), is locally well-posed on Hs(|R), with s>3/4 for KdV and s≥1/4 for mKdV, where the notion of well-posedness includes existence, uniqueness, persistence property of solution and continuous dependence of solution with respect to the initial data. This result is based on the works of Kenig, Ponce and Vega. The technique used to obtain these results is based on fixed point Banach theorem combined with the regularizantes effects of the group associated with the linear part. / Fundação de Amparo a Pesquisa do Estado de Alagoas / Neste trabalho demonstraremos que o problema de Cauchy associado as equações de Korteweg-de Vries, denotada por KdV, e de Korteweg-de Vries modificada, denotada por mKdV, com dado inicial no espaço de Sobolev Hs(|R), é bem posto localmente em Hs(|R), com s>3/4 para a KdV e s≥1/4 para a mKdV, onde a noção de boa postura inclui a existência, unicidade, a propriedade de persistência da solução e dependência contínua da solução com relação ao dado inicial. Este resultado é baseado nos trabalhos de Kenig, Ponce e Vega. A técnica utilizada para obter tais resultados se baseia no Teorema do Ponto Fixo de Banach combinada com os efeitos regularizantes do grupo associado com a parte linear.
2

Hierarquia mKdV e sinh-Gordon supersimétrica com N = 1

Ymai, Leandro Hayato [UNESP] 02 1900 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:25:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02Bitstream added on 2014-06-13T18:53:35Z : No. of bitstreams: 1 ymai_lh_me_ift.pdf: 483788 bytes, checksum: 4f0df0fea1d850bbc366844622fd0b5f (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Apresentamos a formulação da hierarquia mKdV e sinh-Gordon supersimétrica com N = 1 baseada na superálgebra de Kac-Moody sl(2,1). Obtivemos soluções para até quatro vértices para ambos os modelos de dressing e também discutimos a transformação de Bäcklund para o modelo sinh-Gordon supersimétrico utilizando supercampos / We introduce the formulation of supersymmetric mKdV and sinh-Gordon hierarchy with N = 1 based on Kac-Moody sl(2,1) superalgebra. We ontained solutions to up to four vertex operator for both models using the dressing method and we also discuss the Bäcklund transformation for the supersymmetric sinh-Gordon model using superfields
3

Global Attractor for mKdV Equation on 1D Torus / 弱散逸項と外力項付き修正KdV方程式に対するエネルギー空間より広い空間におけるグローバル・アトラクター

Prashant 26 November 2018 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(理学) / 甲第21412号 / 理博第4432号 / 京都大学大学院理学研究科数学・数理解析専攻 / (主査)教授 堤 誉志雄, 教授 泉 正己, 教授 上 正明 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DFAM

Page generated in 0.023 seconds