Results 21 to 30 of about 1,134,625 (212)

The homogeneous structure in a Cartan space

open access: yesLietuvos Matematikos Rinkinys, 2013
The homogeneus almost product structure on the Finsler space have Lieviu Popescu studied. In this paper we study the integrability conditions for the homogeneus product structure in Cartan space with Miron connection.
Edmundas Mazėtis
doaj   +1 more source

Cartan Connections on Lie Groupoids and their Integrability [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2016
A multiplicatively closed, horizontal $n$-plane field $D$ on a Lie groupoid $G$ over $M$ generalizes to intransitive geometry the classical notion of a Cartan connection. The infinitesimalization of the connection $D$ is a Cartan connection $\nabla $ on the Lie algebroid of $G$, a notion already studied elsewhere by the author. It is shown that $\nabla
openaire   +4 more sources

Scale invariant Einstein–Cartan theory in three dimensions

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We retreat the well-known Einstein–Cartan theory by slightly modifying the covariant derivative of spinor field by investigating double cover of the Lorentz group.
Muzaffer Adak, Nese Ozdemir, Ozcan Sert
doaj   +1 more source

Limits of JT gravity

open access: yesJournal of High Energy Physics, 2021
We construct various limits of JT gravity, including Newton-Cartan and Carrollian versions of dilaton gravity in two dimensions as well as a theory on the three-dimensional light cone.
Daniel Grumiller   +3 more
doaj   +1 more source

Parallel transports in the connections of three types for cocongruence K(n-m)m

open access: yesДифференциальная геометрия многообразий фигур
We continue to study the cocongruence of -dimensional planes us­ing the Cartan — Laptev method. In an -dimensional projective space , the cocongruence of -dimensional planes can be given by the following equations .
Belova O. O.
doaj   +1 more source

Cartan Connection and Curvature Forms

open access: yes, 2017
We define the notion of connection and curvature of the connection.
Johar, M. Syafiq (8187057)   +1 more
core   +1 more source

Cartan meets Chaplygin [PDF]

open access: yesTheoretical and Applied Mechanics, 2019
In a note at the 1928 International Congress of Mathematicians Cartan outlined how his “method of equivalence” can provide the invariants of nonholonomic systems on a manifold 𝑄 with kinetic lagrangians [29].
Ehlers Kurt M., Koiller Jair
doaj   +1 more source

Applications of a Particular Four-Dimensional Projective Geometry to Galactic Dynamics

open access: yesGalaxies, 2018
Relativistic location systems that extend relativistic positioning systems show that pseudo-Riemannian space-time geometry is somehow encompassed in a particular four-dimensional projective geometry.
Jacques L. Rubin
doaj   +1 more source

he deformation pseudotensor of connections in cocongruence K (n - m)m

open access: yesДифференциальная геометрия многообразий фигур, 2023
The Grassmann manifold is the set of all -dimensional planes of an -dimensional projective space, with dim. One of the submanifolds of the Grassmann manifold is a complex of -planes if the dimension of the complex exceeds the difference .
O. O. Belova
doaj   +1 more source

Cartan connections in foliated bundles.

open access: yesMichigan Mathematical Journal, 1984
The notion of a Cartan connection in a foliated principal bundle over a foliated manifold is introduced and studied. This notion generalizes that of a Cartan connection in an ordinary principal bundle, and provides a unified approach to the study of many types of transverse geometric structures on foliations.
openaire   +2 more sources

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