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We present a general approach to prove the existence, both locally and globally in amplitude, of fully localised multi-dimensional patterns in partial differential equations containing a compact spatial heterogeneity. While one-dimensional…

Pattern Formation and Solitons · Physics 2026-05-04 Dan J. Hill , David J. B. Lloyd , Matthew R. Turner

A simple method to generate a two-dimensional binary grid pattern, which allows for absolute and accurate self-location in a finite planar region, is proposed. The pattern encodes position information in a local way so that reading a small…

Information Theory · Computer Science 2011-12-20 Alfred M. Bruckstein , Tuvi Etzion , Raja Giryes , Noam Gordon , Robert J. Holt , Doron Shuldiner

Duality of curves is one of the important aspects of the ``classical'' algebraic geometry. In this paper, using this foundation, the duality of tropical polynomials is constructed to introduce the duality of Non-Archimedean curves. Using…

Algebraic Geometry · Mathematics 2007-05-23 Zur Izhakian

We describe how quasiclassical relative positions of particles emerge in an initially delocalized quantum system as scattering of a probe beam is observed. We show that in the multiparticle case this localization in position space occurs…

Quantum Physics · Physics 2015-05-04 James S. Douglas , Keith Burnett

This paper deals with the accomplishment of total area coverage of an arbitrary region using sensors with a finite sensing radius of rs. For a given region, we aim to obtain a deterministic placement of sensors which, apart from ensuring…

Networking and Internet Architecture · Computer Science 2010-01-27 Shyam M , Anurag Kumar

Robot localization is a one of the most important problems in robotics. Most of the existing approaches assume that the map of the environment is available beforehand and focus on accurate metrical localization. In this paper, we address…

Robotics · Computer Science 2015-04-03 Bahram Behzadian , Pratik Agarwal , Wolfram Burgard , Gian Diego Tipaldi

Relative localization between autonomous robots without infrastructure is crucial to achieve their navigation, path planning, and formation in many applications, such as emergency response, where acquiring a prior knowledge of the…

We consider a few ansatzs for the four and seven forms of 11-dimensional supergravity over AdS_4 x S^7/Z_k while try to keep the geometry unchanged. From the 4-form equations, we arrive at some massless scalars and pseudoscalars in the bulk…

High Energy Physics - Theory · Physics 2015-10-15 M. Naghdi

Global localization is an important and widely studied problem for many robotic applications. Place recognition approaches can be exploited to solve this task, e.g., in the autonomous driving field. While most vision-based approaches match…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Daniele Cattaneo , Matteo Vaghi , Simone Fontana , Augusto Luis Ballardini , Domenico Giorgio Sorrenti

We characterize all possible relative positions between a hyperboloid of one sheet and a sphere through the roots of a characteristic polynomial associated to these quadrics. The classification is also suitable for a hyperboloid and a…

Metric Geometry · Mathematics 2016-05-05 M. Brozos-Vázquez , M. J. Pereira-Sáez , M. J. Souto-Salorio , Ana D. Tarrío-Tobar

Circumnavigation control is useful in real-world applications such as entrapping a hostile target. In this paper, we consider a heterogeneous multi-robot system where robots have different physical properties, such as maximum movement…

Robotics · Computer Science 2018-05-18 Weijia Yao , Sha Luo , Huimin Lu , Junhao Xiao

Cooperative geolocation has attracted significant research interests in recent years. A large number of localization algorithms rely on the availability of statistical knowledge of measurement errors, which is often difficult to obtain in…

Applications · Statistics 2017-01-05 Xiufang Shi , Guoqiang Mao , Brian. D. O. Anderson , Zaiyue Yang , Jiming Chen

Low cost robots, such as vacuum cleaners or lawn mowers, employ simplistic and often random navigation policies. Although a large number of sophisticated localization and planning approaches exist, they require additional sensors like LIDAR…

Robotics · Computer Science 2019-08-14 Nils Rottmann , Ralf Bruder , Achim Schweikard , Elmar Rueckert

A global analysis is presented of solutions for Laplace's equation on three-dimensional Euclidean space in one of the most general orthogonal asymmetric confocal cyclidic coordinate systems which admit solutions through separation of…

Classical Analysis and ODEs · Mathematics 2015-06-12 Howard S. Cohl , Hans Volkmer

Moire lattices consist of two identical periodic structures overlaid with a relative rotation angle. Present even in everyday life, moire lattices have been also produced, e.g., with coupled graphene-hexagonal boron nitride monolayers,…

Localization is a fundamental task in robotics for autonomous navigation. Existing localization methods rely on a single input data modality or train several computational models to process different modalities. This leads to stringent…

Robotics · Computer Science 2023-07-04 Muhammad Ibrahim , Naveed Akhtar , Saeed Anwar , Ajmal Mian

While both outdoor and indoor localization methods are flourishing, how to properly marry them to offer pervasive localizability in urban areas remains open. Recently proposals on indoor-outdoor detection make the first step towards such an…

Networking and Internet Architecture · Computer Science 2020-10-29 Feng Li , Jin Wang , Jun Luo

In conventional global navigation satellite system (GNSS) receivers, usually full pseudorange measurements are required to complete a single point position fix. However, to obtain full pseudorange measurements takes longer time than for…

Signal Processing · Electrical Eng. & Systems 2020-11-26 Sihao Zhao , Xiaowei Cui , Mingquan Lu

Here is a square problem: in a unit square, is there a point with four rational distances to the vertices? A probability argument suggests a negative answer. This paper proves several special cases of the square problem: if the point sits…

General Mathematics · Mathematics 2021-05-14 Yang Ji

Motivated by secure wireless networking, we consider the problem of placing fixed localizers that enable mobile communication devices to prove they belong to a secure region that is defined by the interior of a polygon. Each localizer views…

Computational Geometry · Computer Science 2007-05-23 David Eppstein , Michael T. Goodrich , Nodari Sitchinava
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