Results 1 to 10 of about 116 (92)
Nuclear Physics B, 2023 The construction and general implications of a model with complete supersymmetric unification of the Standard Model matter content, interactions and families' replication into a single E8 gauge superfield in ten dimensions is presented.
Alfredo Aranda +3 more
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Scalar-tensor theory with EGB term from Einstein Chern-Simons gravity
Nuclear Physics B, 2023 It is shown that the compactification á la Randall-Sundrum of the so-called, five-dimensional Einstein-Chern-Simons action gravity leads to an action for a four-dimensional scalar-tensor gravity that includes a Gauss-Bonnet term, which belongs to a ...
L. Cárdenas +4 more
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Dynamics of a Cosmological Model in f(R,T) Gravity: I. On Invariant Planes
Universe, 2022 Under the background of perfect fluid and flat Friedmann–Lemaître–Robertson–Walker (FLRW) space-time, this paper mainly describes the dynamics of the cosmological model constructed in f(R,T) gravity on three invariant planes, by using the singularity ...
Jianwen Liu, Ruifang Wang, Fabao Gao
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Dynamical Analysis and Periodic Solution of a Chaotic System with Coexisting Attractors
Complexity, 2021 Chaotic attractors with no equilibria, with an unstable node, and with stable node-focus are presented in this paper. The conservative solutions are investigated by the semianalytical and seminumerical method.
Mingshu Chen +3 more
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Derivation of a Unified Theory from the Holographic Principle
Reports in Advances of Physical Sciences, 2023 Holographic principle and the related self-similarity symmetry are observed widely in nature. Research in black hole, string theory and quantum theory of gravity suggests that holographic principle can be an important symmetry for solving challenging ...
Zhi Gang Sha, Rulin Xiu
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Dynamics of a Cosmological Model in f(R,T) Gravity: II. In Three-Dimensional Space
Universe, 2023 Based on the results discussed on the invariant planes in the known literature [Universe 2022, 8, 365] for the flat FLRW space-time universe model with ideal fluid under the gravity of f(R,T)=ξRα+ζ−T, this paper continues to describe the global dynamics ...
Jianwen Liu, Ruifang Wang, Fabao Gao
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Single extra dimension from κ-Poincaré and gauge invariance
Journal of High Energy Physics, 2021 We show that κ-Poincaré invariant gauge theories on κ-Minkowski space with physically acceptable commutative (low energy) limit must be 5-d. The gauge invariance requirement of the action fixes the dimension of the κ-Minkowski space to d = 5 and selects ...
Philippe Mathieu, Jean-Christophe Wallet
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On generic homogeneous vector fields
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022 Background. The study of dynamical systems with symmetry is of both theoretical and applied interest. Phase portraits of dynamical systems defined by homogeneous vector fields are invariant with respect to the phase space dilation group.
V.Sh. Roytenberg
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Periodic perturbations of quadratic planar polynomial vector fields
Anais da Academia Brasileira de Ciências, 2002 In this work are studied periodic perturbations, depending on two parameters, of quadratic planar polynomial vector fields having an infinite heteroclinic cycle, which is an unbounded solution joining two saddle points at infinity.
MARCELO MESSIAS
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Mathematical analysis of an economic growth model with perfect-substitution technologies
Nonlinear Analysis, 2020 The purpose of this paper is to highlight certain features of a dynamic optimisation problem in an economic growth model with environmental negative externalities that gives rise to a two-dimensional dynamical system.
Paolo Russu
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