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Gaussian inference on smooth manifolds is central to robotics, but exact marginalization and conditioning are generally non-Gaussian and geometry-dependent. We study tangent-linearized Gaussian inference and derive explicit non-asymptotic…

Robotics · Computer Science 2026-04-30 Junghoon Seo , Hakjin Lee , Jaehoon Sim

Based on some previous results, one gives a general formula for introducing electromagnetic multipole expansions in terms of symmetric and traceless cartesian tensors.

Physics Education · Physics 2007-05-23 Constantin Vrejoiu

In this article, we give a unified proof of the end-point estimates of the totally-geodesic $k$-plane transform of radial functions on spaces of constant curvature. The problem of getting end-point estimates is not new and some results are…

Functional Analysis · Mathematics 2025-07-29 Aniruddha Deshmukh , Ashisha Kumar

We consider the Radon transform along lines in an $n$ dimensional vector space over the two element field. It is well known that this transform is injective and highly overdetermined. We classify the minimal collections of lines for which…

Combinatorics · Mathematics 2019-07-10 Eric L. Grinberg

Here, we suggest a method to represent general directed uniform and non-uniform hypergraphs by different connectivity tensors. We show many results on spectral properties of undirected hypergraphs also hold for general directed uniform…

Spectral Theory · Mathematics 2018-08-16 Anirban Banerjee , Arnab Char

Stationary geodesic networks are the analogs of closed geodesics whose domain is a graph instead of a circle. We prove that for a Baire-generic Riemannian metric on a smooth manifold $M$, all connected embedded stationary geodesic nets are…

Differential Geometry · Mathematics 2023-07-21 Bruno Staffa

We introduce a geometrical framework for double field theory in which generalized Riemann and torsion tensors are defined without reference to a particular basis. This invariant geometry provides a unifying framework for the frame-like and…

High Energy Physics - Theory · Physics 2015-06-12 Olaf Hohm , Barton Zwiebach

We give a new proof of the existence of compact surfaces embedded in $R^3$ with Anosov geodesic flows. This proof starts with a non-compact model surface whose geodesic flow is shown to be Anosov using a uniformly strictly invariant cone…

Dynamical Systems · Mathematics 2019-04-25 Victor Donnay , Daniel Visscher

This paper proposes several Converse Lyapunov Theorems for nonlinear dynamical systems defined on smooth connected Riemannian manifolds and characterizes properties of corresponding Lyapunov functions in a normal neighborhood of an…

Optimization and Control · Mathematics 2014-06-25 Farzin Taringoo , Peter M. Dower , Dragan Nešić , Ying Tan

We present an example of a complete Riemannian plane with precisely two injective geodesics - up to reparameterization. The example arises as a perturbation of a surface of revolution with contracting end. The last section is devoted to…

Differential Geometry · Mathematics 2022-08-19 Victor Bangert , Stefan Suhr

Let X be an open subset of R^2. We study the dynamic operator, A, integrating over a family of level curves in X when the object changes between the measurement. We use analytic microlocal analysis to determine which singularities can be…

Analysis of PDEs · Mathematics 2018-11-12 Siamak RabieniaHaratbar

We define and study a family of distributions with domain complete Riemannian manifold. They are obtained by projection onto a fixed tangent space via the inverse exponential map. This construction is a popular choice in the literature for…

Statistics Theory · Mathematics 2008-05-07 Nikolay H. Balov

A generalized covariant method of analysis applicable to frames for which time is not orthogonal to space, such as spacetime around a star possessing angular momentum or on a rotating disk, is presented. Important aspects of such an…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Robert D. Klauber

In this paper we study the geodesic flow for a particular class of Riemannian non-compact manifolds with variable pinched negative sectional curvature. For a sequence of invariant measures we are able to prove results relating the loss of…

Dynamical Systems · Mathematics 2018-09-18 Godofredo Iommi , Felipe Riquelme , Anibal Velozo

We assign some kind of invariant manifolds to a given integrable PDE (its discrete or semi-discrete variant). First, we linearize the equation around its arbitrary solution $u$. Then we construct a differential (respectively, difference)…

Exactly Solvable and Integrable Systems · Physics 2018-04-25 Ismagil Habibullin , Aigul Khakimova

We introduce a parametrized notion of genericity for Delaunay triangulations which, in particular, implies that the Delaunay simplices of $\delta$-generic point sets are thick. Equipped with this notion, we study the stability of Delaunay…

Computational Geometry · Computer Science 2015-05-08 Jean-Daniel Boissonnat , Ramsay Dyer , Arijit Ghosh

We define an ending lamination for a Weil-Petersson geodesic ray. Despite the lack of a natural visual boundary for the Weil-Petersson metric, these ending laminations provide an effective boundary theory that encodes much of its asymptotic…

Geometric Topology · Mathematics 2008-11-14 Jeffrey Brock , Howard Masur , Yair Minsky

This work demonstrates that the popular arithmetic mean conformation tensor frequently used in the analysis of turbulent viscoelastic flows is not a good representative of the ensemble. Alternative means based on recent developments in the…

Fluid Dynamics · Physics 2019-02-22 Ismail Hameduddin , Tamer A. Zaki

We study tautness properties of a Riemannian foliation by investigating a symmetric 2-tensor associated with the mean curvature of the foliation. As a consequence, we prove a tautness condition for Riemannian foliations on compact manifolds…

Differential Geometry · Mathematics 2026-05-26 Jungwoo Moon

We study a set of generalized V-line transforms, namely longitudinal, mixed, and transverse V-line transforms, of a symmetric $m$-tensor field in $\mathbb{R}^2$. The goal of this article is to recover a symmetric $m$-tensor field…

Analysis of PDEs · Mathematics 2025-02-10 Rahul Bhardwaj