Results 41 to 50 of about 778 (105)

On some properties of the asymptotic Samuel function

open access: yesMathematische Nachrichten, Volume 298, Issue 7, Page 2401-2423, July 2025.
Abstract The asymptotic Samuel function generalizes to arbitrary rings the usual order function of a regular local ring. Here, we explore some natural properties in the context of excellent, equidimensional rings containing a field. In addition, we establish some results regarding the Samuel slope of a local ring.
A. Bravo, S. Encinas, J. Guillán‐Rial
wiley   +1 more source

On totally umbilical and minimal surfaces of the Lorentzian Heisenberg groups

open access: yesMathematische Nachrichten, Volume 298, Issue 6, Page 1922-1942, June 2025.
Abstract This paper has manifold purposes. We first introduce a description of the Gauss map for submanifolds (both spacelike and timelike) of a Lorentzian ambient space and relate the conformality of the Gauss map of a surface to total umbilicity and minimality.
Giovanni Calvaruso   +2 more
wiley   +1 more source

TYCHONOFF AND CONNECTED PRODUCTS THEOREMS ARE EQUIVALENT

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2017
In Topology, Tychonoff’s theorem asserts that the compactness of a product of topological spaces and compactness of each of its factors are equivalent facts. Analogously, the connected products theorem does the same about connectedness.
Juan Antonio Pérez
doaj   +1 more source

Generative processes for bioinspired morphology in the wood tissue of cactus

open access: yesArquitecno, 2020
The simulation procedure of the equilibrium dynamics of a bio-inspired system in the wooden structure of cacti is described. The design studies the functional morphology of the organic referent through the construction of models.
Ludovica Rossi
doaj   +1 more source

Zero‐curvature subconformal structures and dispersionless integrability in dimension five

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 6, December 2024.
Abstract We extend the recent paradigm “Integrability via Geometry” from dimensions 3 and 4 to higher dimensions, relating dispersionless integrability of partial differential equations to curvature constraints of the background geometry. We observe that in higher dimensions on any solution manifold, the symbol defines a vector distribution equipped ...
Boris Kruglikov, Omid Makhmali
wiley   +1 more source

Diseño y Construcción de una Red de Fibra Óptica para Análisis de Topologías y Transmisión de Señales en Dispositivos para Redes WDM- PON

open access: yesTecnoLógicas, 2009
In this work, we designed and built a fiber optic-network in the optical laboratory of the Instituto Tecnológico Metropolitano.This network was used to emulate different topologies almost real conditions with the possibility to make connections up to 45 ...
Claudia Milena Serpa-Imbett   +3 more
doaj  

La metafísica y el agujero de la política: el sentido de la topología, entre Lacan y Heidegger.

open access: yesTrans/Form/Ação, 2022
Tomando como motivo una conjetura de Lacan dirigida a Heidegger, referida a lo que sería la metafísica y lo que determinaría su historia y sus efectos, el presente trabajo pretende poner en relación la topología lacaniana y la topología heideggeriana ...
Gianfranco Cattaneo Rodríguez
doaj   +1 more source

Evaluating cryptographic vulnerabilities created by quantum computing in industrial control systems

open access: yesJournal of Critical Infrastructure Policy, Volume 5, Issue 2, Page 88-110, Fall/Winter 2024.
Abstract Quantum computing is expected to eventually be able to break the public‐key cryptography algorithms currently used throughout information technology (IT) infrastructure, undermining foundational tools used to maintain information security across the country's critical infrastructure.
Michael J. D. Vermeer   +5 more
wiley   +1 more source

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

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   +1 more source

Diagrams as large-scale generative systems

open access: yesEGA, 2015
This article aims, on the one hand, to determine the defining characteristics of those approaches to design that are mainly based on the use of graphic diagrams with generative capabilities.
Miguel Paredes Maldonado
doaj   +1 more source

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