Results 181 to 190 of about 548,331 (295)

Existence of Normalized Solutions of a Hartree–Fock System With Mass Subcritical Growth

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 12309-12319, August 2025.
ABSTRACT In this paper, we are concerned with normalized solutions of a class of Hartree‐Fock type systems. By seeking the constrained global minimizers of the corresponding functional, we prove that the existence and nonexistence of normalized solutions.
Hua Jin   +3 more
wiley   +1 more source

Consideraciones sobre sociedad, ciencia y tecnología en el trabajo educativo

open access: yesPesquisa e Debate em Educação, 2018
Se desarrollan reflexiones analítico-metodológicas que reconstruyen cualitativamente el vínculo entre pasado y presente en relación dialéctica ciencia natural y social, tecnología en relación con las matemáticas.
Oscar Holguín Villamil, Daniel Mill
doaj  

Matemáticas para maestros de primaria: dar sentido al "explicar por qué" [PDF]

open access: yes, 2003
Para que los maestros desarrollen en sus futuros estudiantes habilidades de razonar y dar sentido a las matemáticas, los mismos maestros deben dar sentido y ser capaces de razonar acerca de las matemáticas que van a enseñar.
Beckmann, Sybilla
core  

Analysis of the Generalized Ostrovsky Equation in the Propagation of Surface and Internal Waves in Rotating Fluids

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 12427-12439, August 2025.
ABSTRACT The Ostrovsky equation models long, weakly nonlinear waves, explaining the propagation of surface and internal waves in a rotating fluid. The study focuses on the generalized Ostrovsky equation. Introduced by Levandosky and Liu, this equation demonstrates the existence of solitary waves through variational methods.
Sol Sáez
wiley   +1 more source

Multivariate Neural Network Operators: Simultaneous Approximation and Voronovskaja‐Type Theorem

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 11, Page 10669-10677, 30 July 2025.
ABSTRACT In this paper, the simultaneous approximation and a Voronoskaja‐type theorem for the multivariate neural network operators of the Kantorovich type have been proved. In order to establish such results, a suitable multivariate Strang–Fix type condition has been assumed.
Marco Cantarini, Danilo Costarelli
wiley   +1 more source

Narrativas civilizatorias de la enseñanza de las matemáticas: lo que se mantiene, irrumpe y se transforma y el sujeto

open access: yesRevista Científica, 2019
En el presente artículo se muestran los resultados del proyecto de investigación doctoral “Narrativas civilizatorias de la enseñanza de las matemáticas en Colombia”.
Néstor Fernando Guerrero Recalde
doaj  

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