Results 21 to 30 of about 514,152 (162)

Expanding the Applicability of a Third Order Newton-Type Method Free of Bilinear Operators

open access: yesAlgorithms, 2015
This paper is devoted to the semilocal convergence, using centered hypotheses, of a third order Newton-type method in a Banach space setting. The method is free of bilinear operators and then interesting for the solution of systems of equations.
Sergio Amat   +3 more
doaj   +1 more source

Algunas observaciones sobre la unicidad del equilibrio para economías de dimensiones infinitas

open access: yesEstudios Económicos, 1996
En la teoría del equilibrio general existe una importante cantidad de trabajos destinados a encontrar condiciones que garanticen la unicidad del equilibrio walrasiano.
Elvio Accinelli
doaj   +1 more source

The structure of extended function groups

open access: yesCubo, 2021
Conformal (respectively, anticonformal) automorphisms of the Riemann sphere are provided by the Möbius (respectively, extended Möbius) transformations.
Rubén A. Hidalgo
doaj   +1 more source

Detection, Measurement and Classification of Discontinuities of Signals Captured with Noise

open access: yesAxioms
In this work, we propose an algorithm for the detection, measurement and classification of discontinuities in signals captured with noise. Our approach is based on the Harten’s subcell-resolution approximation adapted to the presence of noise.
Sergio Amat   +2 more
doaj   +1 more source

Generic Homeomorphisms with Shadowing of One-Dimensional Continua

open access: yesAxioms, 2019
In this article, we show that there are homeomorphisms of plane continua whose conjugacy class is residual and have the shadowing property.
Alfonso Artigue, Gonzalo Cousillas
doaj   +1 more source

A Functional Characterization of Almost Greedy and Partially Greedy Bases in Banach Spaces

open access: yesMathematics, 2021
In 2003, S. J. Dilworth, N. J. Kalton, D. Kutzarova and V. N. Temlyakov introduced the notion of almost greedy (respectively partially greedy) bases. These bases were characterized in terms of quasi-greediness and democracy (respectively conservativeness)
Pablo Manuel Berná, Diego Mondéjar
doaj   +1 more source

Grothendieck and ℓ∞$\ell _\infty$‐Grothendieck Subspaces of ℓ∞$\ell _\infty$

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT Let c=2ℵ0$\mathfrak {c}=2^{\aleph _0}$. We prove that ℓ∞$\ell _\infty$ contains 2c$2^{\mathfrak {c}}$ pairwise non‐isomorphic non‐reflexive Grothendieck subspaces. They may all be chosen to contain the canonical copy of c0$c_0$ and to have an infinite‐dimensional reflexive quotient. This is optimal and answers Problem 24 of González and Kania [
Manuel González, Tomasz Kania
wiley   +1 more source

Tastets d'Estadística. Inferència estadística. Estimació (1)

open access: yes, 2020
In the Theory of Statistics subject, they do Statistics Tests and explain statistical inference and estimation through an exampleDins l'assignatura Teoria d'Estadística, fan Tastets d'estadística i expliquen la inferència estadística i l'estimació a ...
Barceló i Vidal, Carles   +2 more
core   +2 more sources

Perfiles del futuro profesorado de matemáticas a partir de sus competencias profesionales

open access: yesEnseñanza de las Ciencias, 2020
El objetivo de este artículo es identificar los perfiles del futuro profesorado de matemáticas a partir de su percepción sobre la adquisición de competencias, relacionándolos con la formación previa.
Laura Muñiz-Rodríguez   +2 more
doaj  

On Eulerian equilibria in K-order approximation of the gyrostat in the three-body problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We consider the noncanonical Hamiltonian dynamics of a gyrostat in the three-body problem. By means of geometric-mechanics methods we study the approximate Poisson dynamics that arises when we develop the potential in series of Legendre and truncate this
J. A. Vera, A. Vigueras
doaj   +1 more source

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