Results 1 to 10 of about 44,278 (213)

Contact Geometry of Curves [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
Cartan's method of moving frames is briefly recalled in the context of immersed curves in the homogeneous space of a Lie group $G$. The contact geometry of curves in low dimensional equi-affine geometry is then made explicit.
Peter J. Vassiliou
doaj   +8 more sources

Invariant Forms and Automorphisms of Locally Homogeneous Multisymplectic Manifolds [PDF]

open access: yes, 2012
It is shown that the geometry of locally homogeneous multisymplectic manifolds (that is, smooth manifolds equipped with a closed nondegenerate form of degree > 1, which is locally homogeneous of degree k with respect to a local Euler field) is ...
A. Banyaga   +41 more
core   +2 more sources

Non-reductive spaces with equiaffine connections of nonzero curvature [PDF]

open access: yesИзвестия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, 2021
The introduction of this article states the object of our investigation which is structures on homogeneous spaces. The problem of establishing links between the curvature and the structure of a manifold is one of the important problems of geometry.
Mozhey, Natal’ya Pavlovna
doaj   +1 more source

Geometry-Preserving Numerical Methods for Physical Systems with Finite-Dimensional Lie Algebras [PDF]

open access: yesJournal of nonlinear science, 2023
We propose a geometric integrator to numerically approximate the flow of Lie systems. The key is a novel procedure that integrates the Lie system on a Lie group intrinsically associated with a Lie system on a general manifold via a Lie group action and ...
Luis Blanco Díaz   +3 more
semanticscholar   +1 more source

Lie algebras of differentiations of linear algebras over a field

open access: yesДифференциальная геометрия многообразий фигур, 2021
In this paper, we study a system of linear equations that define the Lie algebra of differentiations DerA of an arbitrary finite-dimensional linear algebra over a field.
A. Ya. Sultanov   +2 more
doaj   +1 more source

Algebraic torus actions on contact manifolds [PDF]

open access: yesJournal of differential geometry, 2018
We prove LeBrun-Salamon Conjecture in low dimensions. More precisely, we show that a contact Fano manifold X of dimension 2n+1 that has reductive automorphism group of rank at least n-2 is necessarily homogeneous.
Jaroslaw Buczy'nski   +2 more
semanticscholar   +1 more source

Geometry of Submanifolds and Homogeneous Spaces

open access: yes, 2020
The present Special Issue of Symmetry is devoted into two important areas of global Riemannian geometry, namely submanifold theory and the geometry of Lie groups and homogeneous spaces.
G. Kaimakamis, A. Arvanitoyeorgos
semanticscholar   +1 more source

Spectral geometry, homogeneous spaces and differential forms with finite Fourier series [PDF]

open access: yes, 2007
Let G be a compact Lie group acting transitively on Riemannian manifolds Mi and let π:M1 → M2 be a G-equivariant Riemannian submersion. We show that a smooth differential form ϕ on M2 has finite Fourier series on M2 if and only if the pull back π*ϕ has ...
C. Dunn, P. Gilkey, J. H. Park
semanticscholar   +1 more source

Symplectic and Poisson Geometry on Loop Spaces of Manifolds and Nonlinear Equations [PDF]

open access: yes, 1995
We consider some differential geometric classes of local and nonlocal Poisson and symplectic structures on loop spaces of smooth manifolds which give natural Hamiltonian and multihamiltonian representations for some important nonlinear equations of ...
Олег Иванович Мохов
semanticscholar   +1 more source

Yang-Mills Flow and Uniformization Theorems [PDF]

open access: yes, 1997
We consider a parabolic-like systems of differential equations involving geometrical quantities to examine uniformization theorems for two- and three-dimensional closed orientable manifolds.
Chow B.   +3 more
core   +3 more sources

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