Results 1 to 10 of about 788 (107)

Surjectivity of the asymptotic Borel map in Carleman ultraholomorphic classes defined by sequences with shifted moments [PDF]

open access: yesJournal of Inequalities and Applications
We prove several improved versions of the Borel-Ritt theorem about the surjectivity of the asymptotic Borel mapping in classes of functions with M-uniform asymptotic expansion on an unbounded sector of the Riemann surface of the logarithm.
Javier Jiménez-Garrido   +3 more
doaj   +2 more sources

Matching expert range maps with species distribution model predictions. [PDF]

open access: yesConserv Biol, 2020
Abstract Species’ range maps based on expert opinion are a critical resource for conservation planning. Expert maps are usually accompanied by species descriptions that specify sources of internal range heterogeneity, such as habitat associations, but these are rarely considered when using expert maps for analyses.
Mainali K, Hefley T, Ries L, Fagan WF.
europepmc   +2 more sources

The EM Method in a Probabilistic Wavelet-Based MRI Denoising. [PDF]

open access: yesComput Math Methods Med, 2015
Human body heat emission and others external causes can interfere in magnetic resonance image acquisition and produce noise. In this kind of images, the noise, when no signal is present, is Rayleigh distributed and its wavelet coefficients can be approximately modeled by a Gaussian distribution.
Martin-Fernandez M, Villullas S.
europepmc   +2 more sources

A Discrete Representation of the Second Fundamental Form

open access: yesMathematics, 2022
We present a new method to obtain a combinatorial representation for the behaviour of a submanifold isometrically immersed in a Riemannian manifold based on the second fundamental form.
Alfonso Carriazo   +2 more
doaj   +1 more source

La topología como acceso a la teoría lacaniana

open access: yesClaridades: Revista de Filosofía, 2021
En este texto se lleva una lectura de la obra lacaniana a través del estudio de sus figuras topológicas. En este sentido, se afirma que el psicoanálisis lacaniano no hace uso de la topología como si no de una herramienta externa si tratase, es decir ...
Pablo Bernardo Sánchez Gómez
doaj   +1 more source

Morse–Radó theory for minimal surfaces

open access: yesJournal of the London Mathematical Society, Volume 108, Issue 4, Page 1669-1700, October 2023., 2023
Abstract For a class of functions (called minimal Radó functions) that arise naturally in minimal surface theory, we bound the number of interior critical points (counting multiplicity) in terms of the boundary data and the Euler characteristic of the domain of the function.
David Hoffman   +2 more
wiley   +1 more source

Reduction of Homogeneous Pseudo-Kähler Structures by One-Dimensional Fibers

open access: yesAxioms, 2020
We study the reduction procedure applied to pseudo-Kähler manifolds by a one dimensional Lie group acting by isometries and preserving the complex tensor. We endow the quotient manifold with an almost contact metric structure. We use this fact to connect
José Luis Carmona Jiménez   +1 more
doaj   +1 more source

Flujos de plasma hidrodinámicos y magnetohidrodinámicos. Parte III

open access: yesTecnología y Ciencia, 2022
En este artículo hallamos la expresión  general de la topología que el campo magnético adopta para poder  limitar las corrientes que se generan a lo largo de sus líneas en plasmas con resistividad no nula.
Néstor Osvaldo Rotstein   +1 more
doaj   +1 more source

Purely coclosed G2‐structures on nilmanifolds

open access: yesMathematische Nachrichten, Volume 296, Issue 6, Page 2236-2257, June 2023., 2023
Abstract We classify seven‐dimensional nilpotent Lie groups, decomposable or of nilpotency step at most 4, endowed with left‐invariant purely coclosed G2‐structures. This is done by going through the list of all seven‐dimensional nilpotent Lie algebras given by Gong, providing an example of a left‐invariant 3‐form φ which is a pure coclosed G2 ...
Giovanni Bazzoni   +2 more
wiley   +1 more source

Topología del espacio intermedio. La obra del arquitecto paisajista Jussi Jännes en Tapiola

open access: yesVLC Arquitectura, 2023
Entre 1955 y 1967, Jussi Jännes tuvo la oportunidad de proyectar y construir la mayor parte del espacio público de Tapiola, ciudad de nueva planta finlandesa concebida como un laboratorio en el que ensayar soluciones extrapolables a otras intervenciones ...
Enrique Fernández-Vivancos González
doaj   +1 more source

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