Results 11 to 20 of about 192,782 (168)

Morse–Radó theory for minimal surfaces

Journal 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, Francisco Martín, Brian White   +2 more
wiley   +1 more source

Rapid imaging in the field followed by photogrammetry digitally captures the otherwise lost dimensions of plant specimens

Applications in Plant Sciences, Volume 11, Issue 5, September-October 2023., 2023
Abstract Premise We recognized the need for a customized imaging protocol for plant specimens at the time of collection for the purpose of three‐dimensional (3D) modeling, as well as the lack of a broadly applicable photogrammetry protocol that encompasses the heterogeneity of plant specimen geometries and the challenges introduced by processes such as
Nicole James, Alex Adkinson, Austin Mast
wiley   +1 more source

Foundations of Finsler Spacetimes from the Observers’ Viewpoint

Universe, 2020
Physical foundations for relativistic spacetimes are revisited in order to check at what extent Finsler spacetimes lie in their framework. Arguments based on inertial observers (as in the foundations of special relativity and classical mechanics) are ...
Antonio N. Bernal, Miguel A. Javaloyes, Miguel Sánchez   +2 more
doaj   +1 more source

Dynamical Analysis in Chameleon Dark Energy

Fortschritte der Physik, Volume 71, Issue 8-9, September 2023., 2023
Abstract A detailed analysis of the phase‐space for the field equations in scalar field cosmology with a chameleon cosmology in a spatially flat Friedmann–Lemaître–Robertson–Walker spacetime is presented. For the matter source it is assumed that it is an ideal gas with a constant equation of state parameter, while for the scalar field potential and the
Andronikos Paliathanasis
wiley   +1 more source

Experiencia de enseñanza de la Geometría con NeoTrie VR [PDF]

, 2019
The possibilities of using the new software of virtual reality NeoTrie VR (or Neotrie) to teach geometry to children aged 11- 14 years old are presented. This software is tested for the first time as a part of math lessons at a School in Żernica (Poland).
Cangas, Diego, Morga, Grażyna, Rodríguez, José L.   +2 more
core   +1 more source

The influence of equine hoof conformation on the initiation and progression of laminitis

Equine Veterinary Journal, Volume 55, Issue 5, Page 862-871, September 2023., 2023
Abstract Background The health and performance of horses are significantly affected by diseases associated with the hoof. Laminitis is a critical hoof disease that causes pain and, potentially, severe hoof and bone pathology. Objective To generate an equine hoof finite element (FE) model to investigate the impact of normal and toe‐in hoof conformations
Naeim Akbari Shahkhosravi, Reza Kakavand, Helen M. S. Davies, Amin Komeili   +3 more
wiley   +1 more source

Complete Non-Orientable Minimal Surfaces in ℝ3 and Asymptotic Behavior

Analysis and Geometry in Metric Spaces, 2014
In this paperwe give new existence results for complete non-orientable minimal surfaces in ℝ3 with prescribed topology and asymptotic ...
Alarcón Antonio, López Francisco J.
doaj   +1 more source

Un ejemplo de articulación de la lógica y la geometría dinámica en un curso de geometría plana [PDF]

, 2012
En este artículo damos a conocer nuestro punto de vista en relación con el papel de la lógica matemática en los procesos de enseñanza y aprendizaje de la demostración. Ilustramos cómo introducimos temáticas de la lógica en un curso de geometría, para lo
Camargo, Leonor, Molina, Óscar, Perry, Patricia, Samper, Carmen   +3 more
core   +3 more sources

Curves in the Lorentz-Minkowski plane: elasticae, catenaries and grim-reapers

Open Mathematics, 2018
This article is motivated by a problem posed by David A. Singer in 1999 and by the classical Euler elastic curves. We study spacelike and timelike curves in the Lorentz-Minkowski plane 𝕃2 whose curvature is expressed in terms of the Lorentzian ...
Castro Ildefonso, Castro-Infantes Ildefonso, Castro-Infantes Jesús   +2 more
doaj   +1 more source

On the structure vector field of a real hypersurface in complex quadric

Open Mathematics, 2018
From the notion of Jacobi type vector fields for a real hypersurface in complex quadric Qm we prove that if the structure vector field is of Jacobi type it is Killing when the real hypersurface is either Hopf or compact.
Dios Pérez Juan de
doaj   +1 more source