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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

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121243364485 · May 202619922001200920172026
48 results for Finsler structures

We discuss general notions of metrics and of Finsler structures which we call weak metrics and weak Finsler structures. Any convex domain carries a canonical weak Finsler structure, which we call its tautological weak Finsler structure. We compute distances in the tautological weak Finsler structure of a domain and we …

2008-04-04abs ↗pdf ↗

In this paper, we define almost paracontact and normal almost paracontact Finsler structures on a vector bundle and find some conditions for integrability of these structures. We define paracontact metric, para- Sasakian and K-paracontact Finsler structures and study some properties of these structures. For a K-paracon…

2013-02-04abs ↗pdf ↗

The Funk-Finsler structure is constructed in hyperbolic models, including the Klein unit disc.

problem Constructing Funk-Finsler structures in hyperbolic models.
method Using Finsler isometries and explicit computations, the Funk-Finsler structure is constructed in various hyperbolic models.
result The Funk-Finsler structure in the Klein unit disc is a Randers metric.

The paper finds the Finsler structure of Apollonian weak metric on unit disc.

problem Understanding the Finsler structure of Apollonian weak metric on the unit disc.
method Analyzing the deformation of hyperbolic Poincaré metric by a closed 1-form.
result The Apollonian weak-Finsler structure has bounded below SS-curvature and flag curvature KK satisfying <K<1-\infty < K < -1.

An (I,J,K)-generalized Finsler structure on a 3-manifold is a generalization of a Finslerian structure, introduced in order to separate and clarify the local and global aspects in Finsler geometry making use of the Cartan's method of exterior differential systems. In this paper, we show that there is a close relation b…

2012-07-06abs ↗pdf ↗

Effective field theories with explicit Lorentz violation are intimately linked to Riemann-Finsler geometry. The quadratic single-fermion restriction of the Standard-Model Extension provides a rich source of pseudo-Riemann-Finsler spacetimes and Riemann-Finsler spaces. An example is presented that is constructed from a …

2011-04-28abs ↗pdf ↗

Classifies cosmological Finsler spacetimes, finding viable non-stationary models.

problem Locating viable non-stationary Finsler spacetimes in cosmology.
method Locally classified all possible cosmological homogeneous and isotropic Landsberg-type Finsler structures in 4-dimensions.
result Identified unique Finsler, non-Berwaldian Landsberg generalization of Friedmann-Lemaitre-Robertson-Walker geometry.

New insights into metrizability of SO(3)-invariant connections, linking Riemann and Finsler structures.

problem Clarifying metrizability of SO(3)-invariant connections between Riemann and Finsler structures.
method Analyzing 4D SO(3)-invariant, Berwald-Finsler metrizable connections to find non-metric but metrizable connections.
result Identified classes of SO(3)-invariant connections that are not Levi-Civita connections for any pseudo-Riemannian metric but can still be metrized by Finsler functions.

The flag curvature of the Numata Finsler structures is shown to admit a nontrivial prolongation to the one-dimensional case, revealing an unexpected link with the Schwarzian derivative of the diffeomorphisms associated with these Finsler structures.

2008-02-15abs ↗pdf ↗

The aim of the present paper is to construct and investigate a Finsler structure within the framework of a Generalized Absolute Parallelism space (GAP-space). The Finsler structure is obtained from the vector fields forming the parallelization of the GAP-space. The resulting space, which we refer to as a Finslerized Pa…

2012-06-20abs ↗pdf ↗

The abstract introduces golden Finsler structures and explores their local and global properties.

problem Investigating geometric properties of golden Finsler structures.
method Local and global analysis of golden Finsler structures, including explicit computations and transformations.
result Proved that golden Finsler structures cannot be projectively related.

Study examines causal properties of Finsler spacetimes with cone Killing vectors.

problem Characterize causality in Finsler spacetimes with specific Killing vectors.
method Explores the relationship between wind Riemannian structures and spacetimes with cone Killing vectors, focusing on Finsler-Kropina metrics.
result Characterizes causality properties using metric-type properties of Finslerian structures.

Complex Finsler vector bundles have been studied mainly by T. Aikou, who defined complex Finsler structures on holomorphic vector bundles. In this paper, we consider the more general case of a holomorphic Lie algebroid E and we introduce Finsler structures, partial and Chern-Finsler connections on it. First, we recall …

2017-05-25abs ↗pdf ↗

The physics of classical particles in a Lorentz-breaking spacetime has numerous features resembling the properties of Finsler geometry. In particular, the Lagrange function plays a role similar to that of a Finsler structure function. A summary is presented of recent results, including new calculable Finsler structures…

2013-08-15abs ↗pdf ↗

As a natural application of the {\it theory of geometric averaging} in Finsler geometry and generalized Finsler geometry, a new approach to investigate {\it generalized Finsler geometry}, based on a convex invariance of the average structures, is introduced.

2009-05-20abs ↗pdf ↗

I classify the Finsler structures on the 2-sphere that have constant Finsler-Gauss curvature and whose geodesics are the great circles. Modulo diffeomorphism, there is a 2-parameter family of such Finsler structures, only one of which is homogeneous or symmetric, namely the Riemannian one. I discuss the history of the …

1996-11-25abs ↗pdf ↗

Let F2n=(M,M,F)F^{2n}=(M,M',F^{\ast}) be an even-dimensional pseudo-Finsler manifold. We construct an almost hypercomplex structure on any chart domain of a certain atlas of MM' by using a considered non-linear connection. Then by using the almost hypercomplex structure we define two new families of Finsler connections. Also w…

2013-05-26abs ↗pdf ↗

The paper finds and analyzes the Funk-Finsler structure in constant curvature spaces.

problem Investigating the Funk-Finsler metric in spaces of constant curvature.
method Explicitly computed SS-curvature, Riemann curvature, Ricci curvature, and flag curvature.
result The SS-curvature and flag curvature of the Funk-Finsler metric in hyperbolic, spherical, and Euclidean spaces are bounded.

The paper studies connections and Finsler geometry on JB-algebra structure groups.

problem Investigating geometric structures on JB-algebra structure groups.
method Endowing the structure group with a connection and Finsler metric, computing quantities, and proving minimality of paths.
result Established the Finsler metric and distance on the cone of a JB-algebra.

This thesis contains an introduction to the method of average in Finsler geometry. The method is applied to Berwald spaces, obtaining geodesic rigidity conditions. We prove that the Levi-Civita connection of any Riemannian metric affine equivalent to the Berwald metric leaves invariant the indicatrix of th Finsler metr…

2012-06-20abs ↗pdf ↗

Characterizes isometries between non-reversible Finsler manifolds.

problem Understanding isometries in non-reversible Finsler manifolds.
method Generalization of Myers-Nakai Theorem for Riemannian manifolds, modification of function spaces to accommodate asymmetric structure.
result Functional characterization of isometries between non-reversible Finsler manifolds.

Study on Kähler Finsler manifolds with curvature bounds, proving theorems.

problem Understanding Kähler Finsler manifolds with curvature constraints.
method Analyzing partial parallelism of complex structure, proving theorems.
result Generalized comparison theorem for positively curved Kähler Finsler manifolds.

The paper studies curves in Finsler-like spaces and their properties.

problem Investigating properties of curves in asymmetric metric spaces induced by Finsler structures.
method Analyzes three types of absolutely continuous curves in Finsler-like spaces and establishes the Lisini structure theorem.
result Characterizes the nature of absolutely continuous curves in terms of dynamical transference plans.

The study defines conditions for Finsler spacetime structures in (α,β)(α,β)-metrics and identifies their isometries.

problem Conditions for Finsler spacetime structures in (α,β)(α,β)-metrics.
method Established necessary and sufficient conditions for Finsler spacetime structures.
result Identified (α,β)(α,β)-Finsler spacetimes and determined the relation between isometries of (α,β)(α,β)-metrics and the underlying pseudo-Riemannian metric.

The paper shows examples of geodesics switching infinitely often on certain manifolds.

problem Understanding geodesics with infinitely many switches on Finsler and sub-Finsler manifolds.
method Provided examples and explicit structures on Carnot groups, presented a sufficient condition for chattering.
result Geodesics on certain manifolds can exhibit a countable number of switches in arbitrarily small time intervals.

The aim of this article is to present a comparative review of Riemannian and Finsler geometry. The structures of cut and conjugate loci on Riemannian manifolds have been discussed by many geometers including H. Busemann, M. Berger and W. Klingenberg. The key point in the study of Finsler manifolds is the non-symmetric …

2018-11-28abs ↗pdf ↗

The paper explores harmonic and asymptotically harmonic Finsler manifolds and their properties.

problem Characterizing and understanding harmonic Finsler manifolds.
method Investigation of various types of harmonic Finsler manifolds, characterizations via mean curvature and Laplacian, and construction techniques.
result Certain harmonic Finsler manifolds are of Einstein type and examples of non-Riemannian Finsler harmonic manifolds are provided.

The paper studies new curvature properties in Finsler geometry.

problem Properties of projectively equivalent Finsler metrics and their curvature structures.
method Introducing new characterizations of quadratic curvature properties in Finsler manifolds.
result Novel insights into curvature behavior under generalized projective sprays.

The paper explores Finsler-type objects and their variational problems on spacetimes.

problem Generalizing Einstein equations to the Finsler setting.
method Study of the ladder of Finsler-type objects and their variational problems.
result Application of the ladder structure to variational proposals for Finsler spacetimes.

We study the relation between an R-Cartan structure α and an (I, J, K)- generalized Finsler structure on a 3-manifold showing the difficulty in finding a general transformation that maps these structures each other. In some particular cases, the mapping can be uniquely determined by geometrical conditions.

2011-10-24abs ↗pdf ↗

New exact spherically symmetric vacuum solutions found in Finsler gravity.

problem Finding exact vacuum solutions in Finsler gravity.
method Spherically symmetric, asymptotically flat Berwald spacetimes solved for Finsler gravity vacuum equation.
result Only one class of spherically symmetric Berwald spacetimes is compatible with asymptotic flatness and a well-defined causal structure.

A C0C^0-Finsler structure is a continuous function F:TM[0,)F:TM \rightarrow [0,\infty) defined on the tangent bundle of a differentiable manifold MM such that its restriction to each tangent space is an asymmetric norm. We use the convolution of FF with the standard mollifier in order to construct a mollifier smoothing of …

2019-10-31abs ↗pdf ↗