Results 31 to 40 of about 1,641,940 (221)

Geometric structures associated with the Chern connection attached to a SODE [PDF]

open access: bronzeDifferential Geometry and its Applications, 2013
To each second-order ordinary differential equation $ $ on a smooth manifold $M$ a $G$-structure $P^ $ on $J^1(\mathbb{R},M)$ is associated and the Chern connection $\nabla ^ $ attached to $ $ is proved to be reducible to $P^ $; in fact, $P^ $ coincides generically with the holonomy bundle of $\nabla ^ $.
J. Muñoz Masqué, E. Rosado María
openalex   +4 more sources

On an {\it a priori} $L^\infty$ estimate for a class of Monge-Ampère type equations on compact almost Hermitian manifolds

open access: yesCubo, 2022
We investigate Monge-Amp\`ere type equations on almost Hermitian manifolds and show an \textit{a priori} $L^\infty$ estimate for a smooth solution of these equations.
Masaya Kawamura
doaj   +1 more source

The Hodge Chern character of holomorphic connections as a map of simplicial presheaves [PDF]

open access: greenAlgebraic & Geometric Topology, 2022
We define a map of simplicial presheaves, the Chern character, that assigns to every sequence of composable non connection preserving isomorphisms of vector bundles with holomorphic connections an appropriate sequence of holomorphic forms. We apply this Chern character map to the Cech nerve of a good cover of a complex manifold and assemble the data by
Cheyne Glass   +3 more
openalex   +4 more sources

On the Zakharov–Mikhailov action: $$4\hbox {d}$$ Chern–Simons origin and covariant Poisson algebra of the Lax connection [PDF]

open access: yesLetters in Mathematical Physics, 2020
We derive the $$2\hbox {d}$$ 2 d Zakharov–Mikhailov action from $$4\hbox {d}$$ 4 d
V. Caudrelier   +2 more
semanticscholar   +1 more source

Corrigendum to "Chern connection of a pseudo-Finsler metric as a family of affine connections" [PDF]

open access: greenPublicationes Mathematicae Debrecen, 2014
In this note, we give the correct statements of [2,Proposition 3.3 and Theorem 3.4] and a formula of the Chern curvature in terms of the curvature tensor $R^V$ of the affine connection $\nabla^V$ and the Chern tensor $P$.
Miguel Ángel Javaloyes
openalex   +5 more sources

The Chern-Finsler connection and Finsler-Kähler manifolds [PDF]

open access: hybridAdvanced Studies in Pure Mathematics, 2019
In this paper, we shall discuss the theory of connection in complex Finsler geometry, i.e., the Chern-Finsler connection $\nabla$ and its applications. In particular, we shall investigate (1) the ampleness of holomorphic vector bundles over a compact complex manifold which is based on the study due to [Ko1], (2) some special class of complex Finsler ...
Tadashi Aikou
openalex   +3 more sources

Chiral gravitational waves in Palatini-Chern-Simons gravity [PDF]

open access: yesPhysical Review D, 2022
We study the parity-breaking higher-curvature gravity theory of Chern-Simons (CS), using the Palatini formulation in which the metric and connection are taken to be independent fields.
Felipe Sulantay   +2 more
semanticscholar   +1 more source

An inner product for 4D quantum gravity and the Chern–Simons–Kodama state [PDF]

open access: yesClassical and quantum gravity, 2022
We demonstrate that reality conditions for the Ashtekar connection imply a non-trivial measure for the inner product of gravitational states in the polarization where the Ashtekar connection is diagonal, and we express the measure as the determinant of a
S. Alexander, G. Herczeg, L. Freidel
semanticscholar   +1 more source

General solutions in Chern-Simons gravity and T T ¯ $$ T\overline{T} $$ -deformations

open access: yesJournal of High Energy Physics, 2021
We find the most general solution to Chern-Simons AdS3 gravity in Fefferman-Graham gauge. The connections are equivalent to geometries that have a non-trivial curved boundary, characterized by a 2-dimensional vielbein and a spin connection.
Eva Llabrés
doaj   +1 more source

Home - About - Disclaimer - Privacy