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In this paper the projective curvature invariants of a complex Finsler space are obtained. By means of these invariants the notion of complex Douglas space is then defined. A special approach is devoted to obtain the equivalence conditions…

Differential Geometry · Mathematics 2011-06-07 Nicoleta Aldea , Gheorghe Munteanu

This manuscript investigates the curvature and topological properties of certain $\infty$-Einstein Finsler metrics on Finsler metric measure spaces. By imposing symmetry conditions, we construct a series of special metrics and analyze their…

Differential Geometry · Mathematics 2025-07-29 Bin Shen

We study non-reversible Finsler metrics with constant flag curvature 1 on S^2 and show that the geodesic flow of every such metric is conjugate to that of one of Katok's examples, which form a 1-parameter family. In particular, the length…

Differential Geometry · Mathematics 2021-06-08 R. L. Bryant , P. Foulon , S. Ivanov , V. S. Matveev , W. Ziller

For Finsler spaces (M,F) endowed with m-th root metrics, we provide necessary and sufficient conditions in which they are projectively flat, or projectively related to Berwald/Riemann spaces. We also give a specific characterization for…

Differential Geometry · Mathematics 2008-10-22 Nicoleta Brinzei

In this paper, we study the relationship between isoparametric hypersurfaces and hypersurfaces with constant principal curvatures in Finsler spaces. We give some examples of isoparametric hypersurfaces with (non)constant principal…

Differential Geometry · Mathematics 2022-10-25 Peilong Dong , Yali Chen

In this paper, we consider the scalar curvature in the distributional sense of \cite{MR3366052} and the scalar curvature lower bound in the $\beta-$weak $(\beta\in(0, \frac{1}{2}))$ sense of \cite{MR4685089} on an asymptotically flat…

Differential Geometry · Mathematics 2024-05-17 Yuqiao Li

We investigate the rigidity problem for the sharp spectral gap on Finsler manifolds of weighted Ricci curvature bound $\text{Ric}_{\infty} \geq K > 0$. Our main results show that if the equality holds, the manifold necessarily admits a…

Differential Geometry · Mathematics 2022-07-26 Cong Hung Mai

In this paper, we study the weakly weighted Einstein-Finsler metrics. First, we show that weakly weighted Einstein-Kropina metrics must be of isotropic S-curvature with respect to the Busemann-Hausdorff volume form under a certain condition…

Differential Geometry · Mathematics 2022-05-30 Xinyue Cheng , Hong Cheng , Pengsheng Wu

We show how geodesics, Jacobi vector fields and flag curvature of a Finsler metric behave under Zermelo deformation with respect to a Killing vector field. We also show that Zermelo deformation with respect to a Killing vector field of a…

Differential Geometry · Mathematics 2018-04-13 Patrick Foulon , Vladimir S. Matveev

We relate the (non)existence of lower scalar curvature bounds to the existence of certain distance-decreasing maps. We also give a sufficient condition for the existence of a limiting scalar curvature measure in the backward limit of a…

Differential Geometry · Mathematics 2022-12-02 John Lott

We consider conformal deformations within a class of incomplete Riemannian metrics which generalize conic orbifold singularities by allowing both warping and any compact manifold (not just quotients of the sphere) to be the "link" of the…

Differential Geometry · Mathematics 2021-07-06 Thalia Jeffres , Julie Rowlett

Here, an extension of the Obata-Tanno's theorem to Finsler geometry is established and the following rigidity result is obtained; Every complete connected Finsler manifold of positive constant flag curvature is isometrically homeomorphic to…

Differential Geometry · Mathematics 2007-11-13 A. Asanjarani , B. Bidabad

The validity of functional inequalities on Finsler metric measure manifolds is based on three non-Riemannian quantities, namely, the reversibility, flag curvature and $S$-curvature induced by the measure. Under mild assumptions on the…

Differential Geometry · Mathematics 2025-11-17 Alexandru Kristály , Benling Li , Wei Zhao

This article is an exposition of four loosely related remarks on the geometry of Finsler manifolds with constant positive flag curvature. <p> The first remark is that there is a canonical Kahler structure on the space of geodesics of such a…

Differential Geometry · Mathematics 2007-05-23 Robert L. Bryant

We prove a formula involving the scalar curvature of a Riemannian manifold endowed with a distribution in terms of an adapted orthonormal frame for its tangent bundle. Using the formula, we then investigate the effect of collapsing the…

Differential Geometry · Mathematics 2022-10-31 Khoi Nguyen

In this paper, we consider a special class of singular Finsler metrics: $m$-Kropina metrics which are defined by a Riemannian metric and a $1$-form. We show that an $m$-Kropina metric ($m\ne -1$) of scalar flag curvature must be locally…

Differential Geometry · Mathematics 2017-10-03 Guojun Yang

We investigate whether Szabo's metrizability theorem can be extended to Finsler spaces of indefinite signature. For smooth, positive definite Finsler metrics, this important theorem states that, if the metric is of Berwald type (i.e., its…

Differential Geometry · Mathematics 2020-05-05 Andrea Fuster , Sjors Heefer , Christian Pfeifer , Nicoleta Voicu

We consider deformations of the scalar curvature of a partially integrable pseudohermitian manifold, in analogy with the work of Fischer and Marsden on Riemannian manifolds. In particular, we introduce and discuss $R$-singular spaces, give…

Differential Geometry · Mathematics 2024-04-11 Jeffrey S. Case , Pak Tung Ho

We define a symmetry for a Finsler space with Chern connection and investigate its implementation and properties and find a relation between them and flag curvature.

Differential Geometry · Mathematics 2007-06-26 Dariush Latifi , Asadollah Razavi

In the present paper, the flag curvature of invariant Randers metrics on homogeneous spaces and Lie groups is studied. We first give an explicit formula for the flag curvature of invariant Randers metrics arising from invariant Riemannian…

Differential Geometry · Mathematics 2016-12-30 H. R. Salimi Moghaddam
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