Results 91 to 100 of about 30,783 (142)
Situações-problema e tecnologias digitais: reflexões sobre o insucesso de uma prática pedagógica
Revista Espaço Acadêmico, 2017 O trabalho apresenta uma discussão sobre a questão do insucesso de uma prática pedagógica desenvolvida com alunos do nono ano do ensino fundamental, em um processo de dar-se-conta sobre a construção e a utilização de situações-problema e das tecnologias ...
Tiago Dziekaniak Figueiredo
doaj
High Relative Accuracy Computations With Covariance Matrices of Order Statistics
Mathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 11794-11810, 30 July 2026.ABSTRACT In many statistical applications, numerical computations with covariance matrices need to be performed. The error made when performing such numerical computations increases with the condition number of the covariance matrix, which is related to the number of variables and the strength of the correlation between the variables. In a recent work,
Juan Baz +3 more
wiley +1 more source
{'es_ES': 'Revisores del año 2012'}
Avances de Investigación en Educación Matemática, 2013 Avances de Investigación en Educación Matemática
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Weak Solutions for a Class of Nonlocal Singular Problems Over the Nehari Manifold
Mathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 12360-12378, 30 July 2026.ABSTRACT In this paper, we consider a nonlocal model of dilatant non‐Newtonian fluid with a Dirichlet boundary condition. By using the Nehari manifold and fibering map methods, we obtain the existence of at least two weak solutions, with sign information.
Zhenfeng Zhang +2 more
wiley +1 more source
Mathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 12102-12115, 30 July 2026.ABSTRACT We investigate some chemostat models incorporating wall growth, competition, random fluctuations on the dilution rate, and different consumption functions (Monod and Haldane). We analyze the asymptotic behavior of the solutions of the corresponding random differential systems to establish conditions on the model parameters under which the ...
Javier López‐de‐la‐Cruz +2 more
wiley +1 more source
Avances de Investigación en Educación Matemática, 2015 Avances de Investigación en Educación Matemática
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Mean‐Variance Payoff Applied to Stackelberg Games
Mathematical Methods in the Applied Sciences, Volume 49, Issue 10, Page 11516-11533, 15 July 2026.ABSTRACT We analyse a Stackelberg duopoly in which the leader faces uncertainty about the intercept demand, while the follower observes the realised demand and decides whether to enter the market after the uncertainty is resolved. The leader evaluates the uncertainty by maximising a mean‐variance utility function that captures its risk aversion.
João M. Silva +3 more
wiley +1 more source
Revista Tecnología en Marcha. Número Especial Matemática Aplicada 2016
Tecnología en Marcha, 2016 Revista Tecnología en marcha Especial Matemática Aplicada
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International Journal for Numerical Methods in Engineering, Volume 127, Issue 13, 15 July 2026.ABSTRACT This study presents a three‐dimensional cohesive phase field framework for simulating quasi‐static fracture in Gyroid lattice structures. To the authors' knowledge, this is one of the first experimentally validated applications of a diffuse cohesive phase field model to describe damage and fracture evolution in additively manufactured ...
Deison Preve +4 more
wiley +1 more source