Results 21 to 30 of about 704,679 (196)
Free monadic Tarski and MMI3-algebras [PDF]
, 2014 MMI3-algebras are a generalization of the monadic Tarski algebras as defined by A. Monteiro and L. Iturrioz, and a particular case of the MMIn+1-algebras defined by A. Figallo.
Entizne, Rosana V. +3 more
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Revista Interinstitucional Artes de Educar, 2023 This article aims to report the ludic educational practices of a teacher carried out with children in the early years of Elementary School in a public school in the city of Niterói, in the state of Rio de Janeiro; highlighting the subject Mathematics ...
Joana Nély Marques Bispo
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Nonlinear optimization for a tumor invasion PDE model [PDF]
, 2016 In this work, we introduce a methodology to approximate unknown parameters that appear on a non-linear reaction–diffusion model of tumor invasion. These equations consider that tumor-induced alteration of micro-environmental pH furnishes a mechanism for ...
Fernández Ferreyra, Damián Roberto +3 more
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On the smallest Laplace eigenvalue for naturally reductive metrics on compact simple Lie groups [PDF]
, 2019 Eldredge, Gordina and Saloff-Coste recently conjectured that, for a given compact connected Lie group $G$, there is a positive real number $C$ such that $\lambda_1(G,g)\operatorname{diam}(G,g)^2\leq C$ for all left-invariant metrics $g$ on $G$.
Lauret, Emilio Agustin
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TIC no processo de formação inicial de professores da licenciatura em Matemática
Em Teia, 2020 O referido estudo se trata de um recorte da pesquisa de mestrado intitulada “TIC no processo de formação inicial dos alunos do curso de Licenciatura em Matemática da UFMT”.
Alvaro Júnio Bertipaglia da Silva +1 more
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Schur complements in Krein spaces [PDF]
, 2007 The aim of this work is to generalize the notions of Schur complements and shorted operators to Krein spaces. Given a (bounded) J-selfadjoint operator A (with the unique factorization property) acting on a Krein space H and a suitable closed subspace S ...
Maestripieri, Alejandra Laura +1 more
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On complementable operators in the sense of T. Ando [PDF]
, 2020 Consider an operator A :H→K between Hilbert spaces and closed subspaces S ⊂ H and T ⊂ K. If there exist projections E on H and F on K such that R(E) =S, R(F) =T and AE=F∗A then A is called (S, T)-complementable.
Arias, Maria Laura +2 more
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Explaining coexistence of nitrogen fixing and non-fixing rhizobia in legume-rhizobia mutualism using mathematical modeling [PDF]
, 2017 In the mutualism established between legumes and soil bacteria known as rhizobia, bacteria from soil infect plants roots and reproduce inside root nodules where they fix atmospheric N2 for plant nutrition, receiving carbohydrates in exchange.
Knopoff, Damián Alejandro +4 more
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Enhanced transport through desorption-mediated diffusion [PDF]
, 2013 We present a master equation approach to the study of the bulk-mediated surface diffusion mechanism in a three-dimensional confined domain. The proposed scheme allowed us to evaluate analytically a number of magnitudes that were used to characterize the ...
Budde, Carlos Ernesto +3 more
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Arquivos de Neuro-Psiquiatria, 2009 BACKGROUND: From a neuropsychological point of view calculation is a very complex function. A simple arithmetic operation demands many neurocognitive mechanisms that involve verbal, spatial and graphical processing, memory and attention.
Gabriela De Luccia, Karin Zazo Ortiz
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