A5001620738- Advanced Banach Space Theory
- Approximation Theory and Sequence Spaces
- Holomorphic and Operator Theory
- Advanced Harmonic Analysis Research
- Advanced Topics in Algebra
- Fixed Point Theorems Analysis
- Geography and Environmental Studies
- Environmental and biological studies
- Agricultural and Food Sciences
- Mathematical Inequalities and Applications
- Geometric Analysis and Curvature Flows
- Mathematics and Applications
- Advanced Algebra and Logic
- Advanced Topology and Set Theory
- Irrigation Practices and Water Management
- Functional Equations Stability Results
- Optimization and Variational Analysis
- Limits and Structures in Graph Theory
- Reconstructive Surgery and Microvascular Techniques
- Nonlinear Partial Differential Equations
- Nonlinear Differential Equations Analysis
- Matrix Theory and Algorithms
- Dental Implant Techniques and Outcomes
- Geometry and complex manifolds
- Logic, programming, and type systems
Universidade Federal do Maranhão
2017-2025
Universidade Estadual do Maranhão
2017-2019
Abstract This paper presents two general criteria to determine spaceability results in the complements of unions subspaces. The first criterion applies countable subspaces under specific conditions and is closely related Kitson Timoney [J. Math. Anal. Appl. 378 (2011), 680–686]. extends recovers some classical this theory. second establishes sufficient for complement a union Lebesgue spaces be ‐spaceable, or not, even when they are not locally convex. We use result characterize measurable...
Abstract The investigation of regularity/summability properties the coefficients bilinear forms in sequence spaces was initiated by Littlewood 1930. Nowadays, this topic has important connections with other fields Pure and Applied Mathematics. In paper we explore a regularity technique to obtain optimal parameters for several results framework, extending/generalizing theorems Osikiewicz Tonge (Linear Algebra Appl 331:1–9, 2001), Albuquerque et al. (J Funct Anal 266:3726–3740, 2016), Aron...
A distribuição da precipitação pluviométrica é fundamental no dimensionamento dos sistemas de irrigação suplementar, além viabilização agricultura sequeiro, possibilitando o uso racional recursos hídricos determinada região. Desse modo, Objetivou-se estimar a mensal e anual em diferentes níveis probabilidade ocorrência, pelo modelo probabilístico Gama incompleta, para os dados do município Chapadinha-MA. Foi utilizada uma série histórica 1976 2015. provável foi obtida 10, 20, 30, 40, 50, 70,...
In this paper, we introduce the notions of $\alpha$-quasicomplemented and totally subspaces established some results under these contexts. We show, for example, that if $X$ is a separable or reflexive Banach space $Y$ closed infinite codimensional subspace $X$, then totally$\mathit{\ }\alpha$-quasicomplemented if, only $\alpha<\aleph_{0}$ $\left( \text{this an analogue theorem Murray-Mackey Lindenstrauss}\right) $. also show $H$ Hilbert $Y,W\subset H$ are such $W$ orthogonal to...
A distribuicao da precipitacao provavel esperada garante uma margem de seguranca na producao agricola. Objetivou-se estimar a pluviometrica mensal e anual em diferentes niveis ocorrencia, atraves teorica probabilidade Gama, para os dados do municipio Sao Mateus - ES. foi obtida 10, 20, 30, 40, 50, 70, 75, 80 90%. Anualmente, lâmina precipitada atinge valores medios 1271,3 esse valor encontra-se entre 40 50%, com intensidade 1328,1 1253,1 mm, respectivamente. No nivel maior confiabilidade...
A subset <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper A"> <mml:semantics> <mml:mi>A</mml:mi> <mml:annotation encoding="application/x-tex">A</mml:annotation> </mml:semantics> </mml:math> </inline-formula> of a vector space X"> <mml:mi>X</mml:mi> encoding="application/x-tex">X</mml:annotation> is called alttext="alpha"> <mml:mi>α<!-- α --></mml:mi> encoding="application/x-tex">\alpha</mml:annotation>...
Estimar o consumo hídrico de uma cultura agrícola possibilita planejamento do suprimento artificial água maneira mais precisa e racional. Objetivou-se com estudo, avaliar desempenho dos métodos Camargo, Hargreaves-Samani, Jensen-Haise Priestley-Taylor, na estimativa da evapotranspiração referência (ETo) diária tendo como método FAO Penman-Monteith, para município Chapadinha-MA. Os valores ETo, foram comparados por meio análise correlação regressão linear. Para a avaliação estatístico...
Estimar o consumo hidrico de uma cultura agricola possibilita planejamento do suprimento artificial agua maneira mais precisa e racional. Objetivou-se com estudo, avaliar desempenho dos metodos Camargo, Hargreaves-Samani, Jensen-Haise Priestley-Taylor, na estimativa da evapotranspiracao referencia (ETo) diaria tendo como metodo FAO Penman-Monteith, para municipio Chapadinha-MA. Os valores ETo, foram comparados por meio analise correlacao regressao linear. Para a avaliacao estatistico...
O conhecimento da precipitação pluviométrica máxima diária anual esperada, é de suma importância no que se refere ao dimensionamento obras hidráulicas. Objetivou-se com o estudo a caracterização das chuvas intensas em diferentes períodos retorno para município Chapadinha-MA. Foi utilizada distribuição Gumbel estimativa dos valores precipitações máximas diárias anuais esperadas e assim obteve-se equação relaciona intensidade, duração frequência. A aderência dados método foi avaliada teste...
The investigation of regularity/summability properties the coefficients bilinear forms in sequence spaces was initiated by Littlewood $1930$. Nowadays, this topic has important connections with other fields Pure and Applied Mathematics as Complex Analysis, Quantum Information Theory, Theoretical Computer Science Combinatorial Games. In paper we explore a regularity technique to obtain optimal parameters for several results framework, extending/generalizing theorems Osikiewicz Tonge ($2001$),...
Abstract In 1977, G. Bennett proved, by means of nondeterministic methods, an inequality that plays a fundamental role in series optimization problems. More precisely, Bennett's shows that, for and all positive integers , there exists bilinear form with coefficients ±1 satisfying certain constant depending just on ; moreover, the exponents cannot be improved. this paper, using constructive approach, we prove whenever or our techniques are applied to provide new upper bounds constants...
We prove that the optimal constants in classical Bohnenblust–Hille inequality for real-valued <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="m"> <mml:semantics> <mml:mi>m</mml:mi> <mml:annotation encoding="application/x-tex">m</mml:annotation> </mml:semantics> </mml:math> </inline-formula>-homogeneous polynomials, alttext="upper C Subscript m"> <mml:msub> <mml:mi>C</mml:mi> <mml:mrow class="MJX-TeXAtom-ORD"> </mml:mrow>...
In this note we prove that, for $p>0$, $L_{p}[0,1]\smallsetminus\bigcup_{q\in(p,\infty)}L_{q}[0,1]$ is $(\alpha,\mathfrak{c})$-spaceable if, and only $\alpha<\aleph_{0}$. Such a problem first appears in [V. F\'avaro, D. Pellegrino, Tomaz, Bull. Braz. Math. Soc. \textbf{51} (2020) 27-46], where the authors get $(1,\mathfrak{c})$-spaceability of $p>0$. The definitive answer to continued be sought by other authors, some partial answers were obtained. veracity result was expected, as similar...
We provide two general spaceability criteria, and we apply them to several specific topological vector spaces. As a consequence of our main results, can extend verify classical results this theory, as well ensure the existence, except for zero, large algebraic structures within, example, spaces Lebesgue measurable or continous functions, sequence spaces, Hölder Sobolev non-absolutely summing operators even in space functions bounded variation.