Zobrazeno 1 - 10
of 1 582
pro vyhledávání: '"P. Álvarez-García"'
Given an autonomous second-order ordinary differential equation (ODE), we define a Riemannian metric on an open subset of the first-order jet bundle. A relationship is established between the solutions of the ODE and the geodesic curves with respect
Externí odkaz:
http://arxiv.org/abs/2410.07082
Motivated by closed string perturbation theory arguments by S. Shenker, we consider non-perturbative effects of characteristic strength $\mathcal{O}(e^{-1/g_{s}})$, with $g_{s}$ the closed string coupling constant, in supersymmetric critical heteroti
Externí odkaz:
http://arxiv.org/abs/2407.20319
A new class of vector fields enabling the integration of first-order ordinary differential equations (ODEs) is introduced. These vector fields are not, in general, Lie point symmetries. The results are based on a relation between 2-dimensional Rieman
Externí odkaz:
http://arxiv.org/abs/2404.14352
We interpret infinite-distance limits in the complex structure moduli space of F-theory compactifications to six dimensions in the light of general ideas in quantum gravity. The limits we focus on arise from non-minimal singularities in the elliptic
Externí odkaz:
http://arxiv.org/abs/2312.11611
A link between first-order ordinary differential equations (ODEs) and 2-dimensional Riemannian manifolds is explored. Given a first-order ODE, an associated Riemannian metric on the variable space is defined, and some properties of the resulting surf
Externí odkaz:
http://arxiv.org/abs/2312.04489
Symmetry principles have proven important in physics, deep learning and geometry, allowing for the reduction of complicated systems to simpler, more comprehensible models that preserve the system's features of interest. Biological systems often show
Externí odkaz:
http://arxiv.org/abs/2310.10895
We study infinite-distance limits in the complex structure moduli space of elliptic Calabi-Yau threefolds. In F-theory compactifications to six dimensions, such limits include infinite-distance trajectories in the non-perturbative open string moduli
Externí odkaz:
http://arxiv.org/abs/2310.07761
Autor:
Elena Álvarez-García, Daniel García-Costa, Sandra Paniagua, Julian Vicens, Joan Vila-Francés, Francisco Grimaldo
Publikováno v:
International Journal of Computational Intelligence Systems, Vol 17, Iss 1, Pp 1-13 (2024)
Abstract Detecting misinformation on social media, especially Twitter/X, is crucial during electoral periods. This study presents a comprehensive methodology using a Random Forest model to identify hoax-related tweets in the Spanish political landsca
Externí odkaz:
https://doaj.org/article/6ca66ed5c59749d7ba3111948c1251d4
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-144 (2024)
Abstract We study infinite-distance limits in the complex structure moduli space of elliptic Calabi-Yau threefolds. In F-theory compactifications to six dimensions, such limits include infinite-distance trajectories in the non-perturbative open strin
Externí odkaz:
https://doaj.org/article/0e04c049c5e647f985a16fde517dc352
Autor:
Héctor Álvarez-García, José Antonio Sillero-Medina, María Eugenia Pérez-González, José Damián Ruiz-Sinoga
Publikováno v:
Investigaciones Geográficas, Iss 82, Pp 25-42 (2024)
The runoff threshold is the amount of precipitation that exceeds the infiltration capacity of the soil and from which water begins to flow over the land surface. Its spatial variation will determine the appearance of a series of processes and risks s
Externí odkaz:
https://doaj.org/article/93d0f1fb5d774e5e9fe11784caf5eb23