Results 51 to 60 of about 52,988 (160)

The crucial role of meshing in computational fluid dynamics simulations for organic geometries in paleobiology: Describing fluid dynamics performance through best practices

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 10, Page 2170-2194, October 2025.
Abstract Computational fluid dynamics (CFD) has become an essential tool for studying fluid interactions in biological systems. While widely used in engineering, its application in the natural sciences, particularly in paleobiology, remains limited due to the challenges of meshing complex organic geometries.
Matheo López‐Pachón   +1 more
wiley   +1 more source

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

La geometría esférica en la composición arquitectónica. Retos suscitados en la identificación de su forma y función

open access: yesEGA, 2020
El espacio arquitectónico al que da lugar el uso de la geometría esférica, posee una destacada carga simbólica. Prueba de ello es que a lo largo de la historia ha sido utilizada en las más notables composiciones arquitectónicas.
Juan M. Salmerón Nuñez   +1 more
doaj   +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

La geometría ha muerto, ¡viva la geometría! [PDF]

open access: yes, 1998
La geometría ha muerto, ¡viva la ...
Cortés, Juan Antonio
core  

Dibujando la realidad usando las Isometrías en el plano bidimensional

open access: yesRevista Científica, 2014
El proyecto de innovación pedagógica se centra en la enseñanza-aprendizaje de las isometrías en el plano bidimensional, en los grados sexto y séptimo; se enfatiza en su utilidad para el desarrollo del arte gráfico, específicamente las teselaciones.
Geral Stivens Galán García   +1 more
doaj   +1 more source

Mechanical Hamiltonization of Unreduced ϕ$\phi$‐Simple Chaplygin Systems

open access: yesStudies in Applied Mathematics, Volume 154, Issue 5, May 2025.
ABSTRACT In this paper, we prove that the trajectories of unreduced ϕ$\phi$‐simple Chaplygin kinetic systems are reparameterizations of horizontal geodesics with respect to a modified Riemannian metric. Furthermore, our proof is constructive and these Riemannian metrics, which are not unique, are obtained explicitly in interesting examples.
Alexandre Anahory Simoes   +2 more
wiley   +1 more source

Geometría riemanniana

open access: yes, 2007
Sin tratar de ser exhaustiva, esta obra presenta algunos de los conceptos y resultados básicos de la geometría riemanniana cubriendo los aspectos fundamentales de la teoría de las variedades y de haces, así como los tensores y las formas.
Palmas-Velasco, O   +3 more
core  

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

Boundary Strichartz estimates and pointwise convergence for orthonormal systems

open access: yesTransactions of the London Mathematical Society, Volume 11, Issue 1, December 2024.
Abstract We consider maximal estimates associated with fermionic systems. Firstly, we establish maximal estimates with respect to the spatial variable. These estimates are certain boundary cases of the many‐body Strichartz estimates pioneered by Frank, Lewin, Lieb and Seiringer.
Neal Bez   +2 more
wiley   +1 more source

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