Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Marco Castrillón"'
We characterize isometric actions whose principal orbits are hypersurfaces through the existence of a linear connection satisfying a set of covariant equations in the same spirit as the Ambrose-Singer Theorem for homogeneous space. These results are
Externí odkaz:
http://arxiv.org/abs/2312.16934
Given a Hamiltonian system on a fiber bundle, there is a Poisson covariant formulation of the Hamilton equations. When a Lie group G acts freely, properly, preserving the fibers of the bundle and the Hamiltonian density is G-invariant, we study the r
Externí odkaz:
http://arxiv.org/abs/2210.14732
Publikováno v:
M. Castrill\'on L\'opez and \'A. Rodr\'iguez Abella, Higher order jet bundles of Lie group-valued functions, J. Lie Theory 33 (2023), no. 3, 831-844
For each positive integer $k$, the bundle of $k$-jets of functions from a smooth manifold, $X$, to a Lie group, $G$, is denoted by $J^k(X,G)$ and it is canonically endowed with a Lie groupoid structure over $X$. In this work, we utilize a linear conn
Externí odkaz:
http://arxiv.org/abs/2207.03284
Autor:
Miguel Aurelio Alonso García, Aitana González-Ortiz-de-Zárate, M. Ángeles Gómez-Flechoso, Marco Castrillón López
Publikováno v:
Psicología Educativa: Revista de los Psicólogos de la Educación, Vol 30, Iss 1, Pp 29-37 (2024)
Mentoring programs have been proposed to reduce dropout and increase academic performance. We analyzed the effect of peer mentoring on university dropout and academic performance in the context of Spain. We applied a quasi-experimental posttest-only
Externí odkaz:
https://doaj.org/article/e9b6f97624c74c50b121ad263c7e9d33
Autor:
Pozas-Kerstjens, Alejandro, Hernández-Santana, Senaida, Monturiol, José Ramón Pareja, López, Marco Castrillón, Scarpa, Giannicola, González-Guillén, Carlos E., Pérez-García, David
Publikováno v:
Quantum 8, 1425 (2024)
Tensor networks, widely used for providing efficient representations of low-energy states of local quantum many-body systems, have been recently proposed as machine learning architectures which could present advantages with respect to traditional one
Externí odkaz:
http://arxiv.org/abs/2202.12319
In this work, we develop a Lagrangian reduction theory for covariant field theories with gauge symmetries. These symmetries are modeled by a Lie group fiber bundle acting fiberwisely on a configuration bundle. In order to reduce the variational princ
Externí odkaz:
http://arxiv.org/abs/2202.04578
In this work, generalized principal bundles modelled by Lie group bundle actions are investigated. In particular, the definition of equivariant connections in these bundles, associated to Lie group bundle connections, is provided, together with the a
Externí odkaz:
http://arxiv.org/abs/2201.07088
We describe the holonomy algebras of all canonical connections and their action on complex hyperbolic spaces $\mathbb{C}\mathrm{H}(n)$ in all dimensions ($n\in\mathbb{N}$). This thorough investigation yields a formula for all Kahler homogeneous struc
Externí odkaz:
http://arxiv.org/abs/2112.05453
Autor:
Alejandro Pozas-Kerstjens, Senaida Hernández-Santana, José Ramón Pareja Monturiol, Marco Castrillón López, Giannicola Scarpa, Carlos E. González-Guillén, David Pérez-García
Publikováno v:
Quantum, Vol 8, p 1425 (2024)
Tensor networks, widely used for providing efficient representations of low-energy states of local quantum many-body systems, have been recently proposed as machine learning architectures which could present advantages with respect to traditional one
Externí odkaz:
https://doaj.org/article/76ed914cf6b04cd08007d3528dd28bb2
We propose a category of bundles in order to perform Lagrangian reduction by stages in covariant Field Theory. This category plays an analogous role to Lagrange-Poincar\'e bundles in Lagrangian reduction by stages in Mechanics and includes both jet b
Externí odkaz:
http://arxiv.org/abs/2007.14854