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pro vyhledávání: '"Barbosa, Isnaldo Isaac"'
In this work we study the initial boundary value problem associated with the coupled Schr\"odinger equations {with quadratic nonlinearities, that appears in nonlinear optics}, on the half-line. We obtain local well-posedness for data {in Sobolev spac
Externí odkaz:
http://arxiv.org/abs/2104.05137
In this paper, we present a new explicit formula for the curvatures of a regular curve with an arbitrary parameter in the Euclidean space $\mathbb{R}^n$, $n\geq 2$, expressed only in terms of its derivatives. We introduce also the notion of tube with
Externí odkaz:
http://arxiv.org/abs/2011.10116
Autor:
Barbosa, Isnaldo Isaac
Publikováno v:
Repositório Institucional da UFALUniversidade Federal de AlagoasUFAL.
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
Externí odkaz:
http://repositorio.ufal.br/handle/riufal/1027
In this paper, we present new explicit and nonrecursive formulas for the curvatures and the frame of Frenet of a regular curve with an arbitrary parameter in the Euclidean space Rn, n >2, expressed only in terms of its derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0586120c0457f7e023aff1a6201772a
Autor:
Fernandes-de-Araújo, Adelmo, Barbosa, Isnaldo Isaac, Pereira-da-Silva, Ivanderson, Praxedes-de-Almeida, Jacqueline
Por compreender que a Educação é um Direito de todos, a Constituição Federativa do Brasil de 1988 estabeleceu em seu Art. 212. que cabe a União aplicar, nunca menos de 18%, “da receita resultante de impostos, compreendida a proveniente de tra
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Autor:
Barbosa, Isnaldo Isaac
Publikováno v:
Repositório Institucional da Universidade Federal de Alagoas (UFAL)
Universidade Federal de Alagoas (UFAL)
instacron:UFAL
Universidade Federal de Alagoas (UFAL)
instacron:UFAL
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::1aa89c1a52f8a46afe3b5ec5b110ca44
http://repositorio.ufal.br/handle/riufal/1027
http://repositorio.ufal.br/handle/riufal/1027
Publikováno v:
Repositório Institucional da Universidade Federal de Alagoas (UFAL)
Universidade Federal de Alagoas (UFAL)
instacron:UFAL
Universidade Federal de Alagoas (UFAL)
instacron:UFAL
This research presents a proposal to approach financial mathematics in high school. Several surveys have shown that a large number of Brazilians are in debt and one of the factors that contribute to this is the lack of knowledge to deal with financia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::27eca1b0d71f34670bf7b6685bc63c9e
http://www.repositorio.ufal.br/handle/riufal/7527
http://www.repositorio.ufal.br/handle/riufal/7527