Zobrazeno 1 - 10
of 12 967
pro vyhledávání: '"De Diego, A."'
In this paper, we prove that the trajectories of unreduced $\phi$-simple Chaplygin kinetic systems are reparametrizations of horizontal geodesics with respect to a modified Riemannian metric. Furthermore, our proof is constructive and these Riemannia
Externí odkaz:
http://arxiv.org/abs/2409.18648
While the construction of symplectic integrators for Hamiltonian dynamics is well understood, an analogous general theory for Poisson integrators is still lacking. The main challenge lies in overcoming the singular and non-linear geometric behavior o
Externí odkaz:
http://arxiv.org/abs/2409.04342
The marginal ice zone (MIZ) represents the periphery of the sea ice cover. In this region, the macroscale behavior of the sea ice results from collisions and enduring contact between ice floes. This configuration closely resembles that of dense granu
Externí odkaz:
http://arxiv.org/abs/2405.08123
Autor:
González-Otero, Mauro, Cepa, Jordi, Padilla-Torres, Carmen P., Lara-López, Maritza A., González, J. Jesús, Bongiovanni, Ángel, Cedrés, Bernabé, Cerviño, Miguel, Cruz-González, Irene, Elías-Chávez, Mauricio, Herrera-Edoqui, Martín, Ibarra-Medel, Héctor J., Krongold, Yair, Nadolny, Jakub, Negrete, C. Alenka, García, Ana María Pérez, De Diego, José A., González-Serrano, J. Ignacio, Hernández-Toledo, Héctor, Pérez-Martínez, Ricardo, Sánchez-Portal, Miguel
Publikováno v:
A&A 687, A19 (2024)
Methods.We applied distinct selection criteria to attain an SFG sample with minimal AGN contamination. Multiple approaches were used to estimate the intrinsic extinction, SFR and gas-phase metallicity for the SFGs. In conjunction with findings in the
Externí odkaz:
http://arxiv.org/abs/2404.13629
Polyak's Heavy Ball (PHB; Polyak, 1964), a.k.a. Classical Momentum, and Nesterov's Accelerated Gradient (NAG; Nesterov, 1983) are well know examples of momentum-descent methods for optimization. While the latter outperforms the former, solely general
Externí odkaz:
http://arxiv.org/abs/2404.09363
Autor:
Murray, Lucas, Castillo, Tatiana, Carrasco, Jaime, Weintraub, Andrés, Weber, Richard, de Diego, Isaac Martín, González, José Ramón, García-Gonzalo, Jordi
Over the past decades, the increase in both frequency and intensity of large-scale wildfires due to climate change has emerged as a significant natural threat. The pressing need to design resilient landscapes capable of withstanding such disasters ha
Externí odkaz:
http://arxiv.org/abs/2404.08523
This paper presents a general method to construct Poisson integrators, i.e., integrators that preserve the underlying Poisson geometry. We assume the Poisson manifold is integrable, meaning there is a known local symplectic groupoid for which the Poi
Externí odkaz:
http://arxiv.org/abs/2403.20139
Autor:
Cedrés, Bernabé, De Daniloff, Simon B., Bongiovanni, Ángel, Sánchez-Portal, Miguel, Cerviño, Miguel, Pérez-Martínez, Ricardo, Pérez-García, Ana María, Cepa, Jordi, Lara-López, Maritza A., González-Otero, Mauro, Castillo-Fraile, Manuel, González-Serrano, José Ignacio, Negrete, Castalia Alenka, Padilla-Torres, Camen P., Pintos-Castro, Irene, Povic, Mirjana, Alfaro1, Emilio, Beyoro-Amado, Zeleke, Cruz-González, Irene, de Diego, José A., Martínez, Rocío Navarro, Mancillas, Brisa, Rodríguez, Mónica I., Valtchanov, Iván
In this paper, we revisit the data for the galaxy cluster ZwCl 0024.0+1652 provided by the GLACE survey and study the mass--metallicity function and its relationship with the environment. Here we describe an alternative way to reduce the data from OS
Externí odkaz:
http://arxiv.org/abs/2403.11629
Publikováno v:
Journal of Physics: Condensed Matter 12, 46 (2000) 9715-9723
The effect of the lattice relaxation at vacancy clusters and interstitial-type dislocation loops on the lifetime of positrons in Zn has been studied. Defective relaxed structures have been generated for the lifetime calculations by using a many-body
Externí odkaz:
http://arxiv.org/abs/2402.04693
Retraction maps have been generalized to discretization maps in (Barbero Li\~n\'an and and Mart\'{\i}n de Diego, 2022). Discretization maps are used to systematically derive numerical integrators that preserve the symplectic structure, as well as the
Externí odkaz:
http://arxiv.org/abs/2401.14800