Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Francisco J. Herranz"'
Publikováno v:
AIMS Mathematics, Vol 8, Iss 10, Pp 23025-23052 (2023)
Using the theory of Lie-Hamilton systems, formal generalized time-dependent Hamiltonian systems that extend a recently proposed SIS epidemic model with a variable infection rate are considered. It is shown that, independently on the particular interp
Externí odkaz:
https://doaj.org/article/4787722006f14f2ea37b5600ae91cef4
Publikováno v:
Axioms, Vol 13, Iss 1, p 26 (2023)
It is shown that the complex Bernoulli differential equations admitting the supplementary structure of a Lie–Hamilton system related to the book algebra b2 can always be solved by quadratures, providing an explicit solution of the equations. In add
Externí odkaz:
https://doaj.org/article/c0a442c62ab3409f9f7a6a0b16dc1e17
Publikováno v:
Physics Letters B, Vol 838, Iss , Pp 137735- (2023)
The noncommutative spacetimes associated to the κ-Poincaré relativistic symmetries and their “non-relativistic” (Galilei) and “ultra-relativistic” (Carroll) limits are indistinguishable, since their coordinates satisfy the same algebra. In
Externí odkaz:
https://doaj.org/article/726324d8ce754b8ca46be3b47225aa7e
Publikováno v:
Physics Letters B, Vol 829, Iss , Pp 137120- (2022)
The noncommutative space of light-like worldlines that is covariant under the light-like (or null-plane) κ-deformation of the (3+1) Poincaré group is fully constructed as the quantization of the corresponding Poisson homogeneous space of null geode
Externí odkaz:
https://doaj.org/article/6d5c8bf4ce184da8a8270664d65b7dd8
Publikováno v:
Physics Letters B, Vol 796, Iss , Pp 93-101 (2019)
The (3+1)-dimensional κ-(A)dS noncommutative spacetime is explicitly constructed by quantizing its semiclassical counterpart, which is the κ-(A)dS Poisson homogeneous space. This turns out to be the only possible generalization of the well-known κ
Externí odkaz:
https://doaj.org/article/9fd7c9d7215a4ef28e57dc6df7f6265e
Publikováno v:
Physics Letters B, Vol 792, Iss , Pp 175-181 (2019)
The space of time-like geodesics on Minkowski spacetime is constructed as a coset space of the Poincaré group in (3+1) dimensions with respect to the stabilizer of a worldline. When this homogeneous space is endowed with a Poisson homogeneous struct
Externí odkaz:
https://doaj.org/article/caa164adc8f0486fa8013e8e5b3d7cf6
Publikováno v:
Physics Letters B, Vol 805, Iss , Pp - (2020)
We derive the non-relativistic c→∞ and ultra-relativistic c→0 limits of the κ-deformed symmetries and corresponding spacetime in (3+1) dimensions, with and without a cosmological constant. We apply the theory of Lie bialgebra contractions to t
Externí odkaz:
https://doaj.org/article/a168507a34874f50af30998902cef755
Publikováno v:
Physics Letters B, Vol 766, Iss C, Pp 205-211 (2017)
The quantum duality principle is used to obtain explicitly the Poisson analogue of the κ-(A)dS quantum algebra in (3+1) dimensions as the corresponding Poisson–Lie structure on the dual solvable Lie group. The construction is fully performed in a
Externí odkaz:
https://doaj.org/article/489e1827d1b54812814a1e350fd8d617
Publikováno v:
Physics Letters B, Vol 746, Iss , Pp 37-43 (2015)
We present the generalisation to (3+1) dimensions of a quantum deformation of the (2+1) (Anti)-de Sitter and Poincaré Lie algebras that is compatible with the conditions imposed by the Chern–Simons formulation of (2+1) gravity. Since such compatib
Externí odkaz:
https://doaj.org/article/ea2bb1016cfd4f059dd7ed6d031e7793
Publikováno v:
Advances in High Energy Physics, Vol 2017 (2017)
The κ-deformation of the (2 + 1)D anti-de Sitter, Poincaré, and de Sitter groups is presented through a unified approach in which the curvature of the spacetime (or the cosmological constant) is considered as an explicit parameter. The Drinfel’d-
Externí odkaz:
https://doaj.org/article/4105f27b17ad45bcaa41b2de6213ed24