نتایج جستجو برای: finsler manifolds

تعداد نتایج: 32307  

Journal: :iranian journal of science and technology (sciences) 2009
a. tayebi

in this paper, we are going to study the g-natural metrics on the tangent bundle of finslermanifolds. we concentrate on the complex and kählerian and hermitian structures associated with finslermanifolds via g-natural metrics. we prove that the almost complex structure induced by this metric is acomplex structure on tangent bundle if and only if the finsler metric is of scalar flag curvature. t...

Journal: :Science China-mathematics 2023

In this paper, we establish an intrinsic Gauss-Bonnet-Chern formula for Finsler manifolds by using the Mathai-Quillen’s superconnection formalism, in which no extra vector field is involved. Furthermore, prove a more general Lichnerowicz direction through geometric localization procedure.

Journal: :Calculus of Variations and Partial Differential Equations 2022

Abstract We show that in viscous approximations of functionals defined on Finsler manifolds, it is possible to construct suitable sequences critical points these satisfying the expected Morse index bounds as Lazer–Solimini’s theory, together with entropy condition Michael Struwe.

Journal: :International Journal of Mathematics 2023

We show an analogue of the Lorentzian splitting theorem for weighted Lorentz-Finsler manifolds: If a Berwald spacetime nonnegative Ricci curvature satisfies certain completeness and metrizability conditions includes timelike straight line, then it necessarily admits one-dimensional family isometric translations generated by gradient vector field Busemann function. Moreover, our formulation in t...

Journal: :Annales de l'Institut Fourier 2021

In this paper we describe the topological behavior of geodesic flow for a class closed 3-manifolds realized as quotients nonstrictly convex Hilbert geometries, constructed and described explicitly by Benoist. These manifolds are Finsler geometries which have isometrically embedded flats, but also some hyperbolicity an explicit geometric structure. We prove quotient is topologically mixing satis...

Journal: :Kyoto Journal of Mathematics 1976

Journal: :Communications in Contemporary Mathematics 2016

2007
Sergiu I. Vacaru

We elaborate an unified geometric approach to classical mechanics, Riemann–Finsler spaces and gravity theories on Lie algebroids provided with nonlinear connection (N–connection) structure. There are investigated the conditions when the fundamental geometric objects like the anchor, metric and linear connection, almost sympletic and related almost complex structures may be canonically defined b...

1994
Mihai Anastasiei Sergiu I. Vacaru

We provide a method of converting Lagrange and Finsler spaces and their Legendre transforms to Hamilton and Cartan spaces into almost Kähler structures on tangent and cotangent bundles. In particular cases, the Hamilton spaces contain nonholonomic lifts of (pseudo) Riemannian / Einstein metrics on effective phase spaces. This allows us to define the corresponding Fedosov operators and develop d...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید