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We consider in this paper two different types of the weighted geometric means of positive definite operators. We show the component-wise bijection of these geometric means and give a geometric property of the spectral geometric mean as a…

泛函分析 · 数学 2020-09-23 Sejong Kim

This paper proposes a minimal contractor and a minimal separator for an area delimited by an hyperbola of the plane. The task is facilitated using actions induced by the hyperoctahedral group of symmetries. An application related to the…

数值分析 · 数学 2023-05-26 Luc Jaulin

A leading twist expansion in terms of bi-local operators is proposed for the structure functions of deeply inelastic scattering near the elastic limit $x \to 1$, which is also applicable to a range of other processes. Operators of…

高能物理 - 唯象学 · 物理学 2014-11-17 R. Akhoury , M. G. Sotiropoulos , G. Sterman

A rather complete investigation of anisotropic Bessel potential, Besov, and H\"older spaces on cylinders over (possibly) noncompact Riemannian manifolds with boundary is carried out. The geometry of the underlying manifold near its 'ends'…

泛函分析 · 数学 2012-04-04 Herbert Amann

In applications such as seismic acquisition, the position information of sensor nodes, that are deployed in a linear topology, is desired with sub-meter accuracy in the presence of a limited number of anchor nodes. This can be achieved with…

信号处理 · 电气工程与系统科学 2020-07-13 V. A. Reddy , A. Bazzi , G. L. Stuber , S. Al-Dharrab , W. Mesbah , A. H. Muqaibel

A key aspect of the precision of a mobile robots localization is the quality and aptness of the map it is using. A variety of mapping approaches are available that can be employed to create such maps with varying degrees of effort, hardware…

机器人学 · 计算机科学 2023-04-25 Justin Ziegenbein , Manuel Schrick , Marko Thiel , Johannes Hinckeldeyn , Jochen Kreutzfeldt

Accurate localization in diverse environments is a fundamental challenge in computer vision and robotics. The task involves determining a sensor's precise position and orientation, typically a camera, within a given space. Traditional…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Luca Di Giammarino , Boyang Sun , Giorgio Grisetti , Marc Pollefeys , Hermann Blum , Daniel Barath

Random operators constitute fundamental building blocks of models of complex systems yet are far from fully understood. Here, we explain an asymmetry emerging upon repeating identical isotropic (uniformly random) operations. Specifically,…

统计力学 · 物理学 2021-06-03 Malte Schröder , Marc Timme

We describe a novel approach to image based localisation in urban environments using semantic matching between images and a 2-D map. It contrasts with the vast majority of existing approaches which use image to image database matching. We…

计算机视觉与模式识别 · 计算机科学 2018-03-05 Pilailuck Panphattarasap , Andrew Calway

Since their introduction, Transformer architectures have dominated Natural Language Processing (NLP). However, recent research has highlighted an inherent anisotropy phenomenon in these models, presenting a significant challenge to their…

计算与语言 · 计算机科学 2026-04-13 Raphael Bernas , Fanny Jourdan , Antonin Poché , Céline Hudelot

We consider asymptotically Euclidean, initial data sets for Einstein's field equations and solve the localization problem at infinity, also called gluing problem. We achieve optimal gluing and optimal decay, in the sense that we encompass…

广义相对论与量子宇宙学 · 物理学 2024-01-01 Bruno Le Floch , Philippe G. LeFloch

This article surveys results that relate homogenisation problems for partial differential equations and convergence in the weak operator topology of a suitable choice of linear operators. More precisely, well-known notions like…

偏微分方程分析 · 数学 2019-01-23 Marcus Waurick

An object's geocentric pose, defined as the height above ground and orientation with respect to gravity, is a powerful representation of real-world structure for object detection, segmentation, and localization tasks using RGBD images. For…

计算机视觉与模式识别 · 计算机科学 2020-07-03 Gordon Christie , Rodrigo Rene Rai Munoz Abujder , Kevin Foster , Shea Hagstrom , Gregory D. Hager , Myron Z. Brown

We study differential operators on an elliptic curve of order higher than 2 which are algebraically integrable (i.e., finite gap). We discuss classification of such operators of order 3 with one pole, discovering exotic operators on special…

数学物理 · 物理学 2015-03-17 Pavel Etingof , Eric Rains

We show that the variation of the topology at infinity of a two-variable polynomial function is localisable at a finite number of "atypical points" at infinity. We construct an effective algorithm with low complexity in order to detect…

代数几何 · 数学 2021-07-20 Luis Renato G. Dias , Cezar Joiţa , Mihai Tibăr

Quantisation on spaces with properties of curvature, multiple connectedness and non orientablility is obtained. The geodesic length spectrum for the Laplacian operator is extended to solve the Schroedinger operator. Homotopy fundamental…

量子物理 · 物理学 2007-05-23 Ajay Patwardhan

The paper is devoted to establishing relationships between global and local monotonicity, as well as their maximality versions, for single-valued and set-valued mappings between finite-dimensional and infinite-dimensional spaces. We first…

The two-dimensional hyperbolic plane, $\mathbb{H}^2$, is an unusual system in that dimensionality changes with scale: locally two-dimensional and planar at short distances, but effectively infinite-dimensional at large scales, it provides…

无序系统与神经网络 · 物理学 2026-04-29 Alexander Altland , Tobias Micklitz , Devasheesh Sharma , Maksimilian Usoltcev , Carolin Wille

In many commercial and academic settings, numerical solvers fail to achieve their theoretical performance levels due to issues in the system definition, parameterization, and even implementation. We propose a pair of methods for detecting…

数值分析 · 数学 2016-02-25 Matthew O. Williams , Teems E. Lovett

Composing higher auxiliary-spin transfer matrices and their derivatives, we construct a family of quasilocal conserved operators of isotropic Heisenberg spin 1/2 chain and rigorously establish their linear independence from the well-known…

统计力学 · 物理学 2015-09-23 Enej Ilievski , Marko Medenjak , Tomaz Prosen