Results 81 to 90 of about 78,878 (200)
Spectral Parameter Power Series Representation for Regular Solutions of the Radial Dirac System
Mathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 2098-2113, February 2026.ABSTRACT A spectral parameter power series (SPPS) representation for the regular solution of the radial Dirac system with complex coefficients is obtained, as well as a SPPS representation for the (entire) characteristic function of the corresponding spectral problem on a finite interval. Based on the SPPS representation, a numerical method for solving
Emmanuel Roque, Sergii M. Torba
wiley +1 more source
Bidiagonal Decompositions and Accurate Computations for the Ballot Table and the Fibonacci Matrix
Numerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.ABSTRACT Riordan arrays include many important examples of matrices. Here we consider the ballot table and the Fibonacci matrix. For finite truncations of these Riordan arrays, we obtain bidiagonal decompositions. Using them, algorithms to solve key linear algebra problems for ballot tables and Fibonacci matrices with high relative accuracy are derived.
Jorge Ballarín +2 more
wiley +1 more source
Investigación y Postgrado, 2006 El azar está presente en todos los contextos donde el hombre se desenvuelve; de allí la importancia de lograr que en su formación éste desarrolle el pensamiento aleatorio.
Nelly A. León Gómez
doaj
Earth and Space Science, Volume 13, Issue 2, February 2026.Abstract The radar surface echo can be separated into coherent and incoherent components by statistical approaches, and the coherent component can be described by a backscattering model related to the RMS height. According to backscattering models for fractal surfaces, the coherent power in decibels decreases with RMS height on a scale independent of ...
Tiansheng Hong +9 more
wiley +1 more source
Interdisciplinaridade no ensino da Matemática na Educação Básica
, 2022 Fernanda Meneses Amaral +5 more
openalex +2 more sources
Water Resources Research, Volume 62, Issue 2, February 2026.Abstract Total Suspended Solids (TSS) significantly degrade water quality by reducing light penetration and oxygen availability, while facilitating the transport of toxic contaminants. Managing TSS in watersheds requires an understanding of both hydrological connectivity and pollutant dynamics; however, these efforts are significantly constrained by ...
Jesus Guzmán Pérez +2 more
wiley +1 more source
Contribution of microcosm experiments to conservation science
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern +3 more
wiley +1 more source
Cuaderno de Pedagogía UniversitariaEste estudio presenta el diseño y la validación de un instrumento para la observación en la formación práctica preprofesional del futuro profesor de matemática, mediante un proceso que contempló 5 etapas: (1) revisión de la literatura desde dos temas ...
Salvador Alejandro Alarcón Godoy +1 more
doaj
Aprender a aprender Matemática
Revista de Educação Popular, 2008 Este artigo pretende descrever a visão dos novos rumos da Educação Matemática no intuito de incentivar o professor a se envolver na busca do Aprender a Aprender através da reflexão, intervindo para modificar e melhorar sua ação.
Rosilane Cristina de Oliveira
doaj