Publications related to Euclidean plane

From Tarski's Plank Problem to Simultaneous Approximation

A slab (or plank) is the part of the d-dimensional Euclidean space that lies between two parallel hyperplanes. The distance between the these hyperplanes is called the width of the slab. It is conjectured that the members of any infinite family of slabs wi ...

Mathematical Assoc Amer2017

Omnidirectional bats, point-to-plane distances, and the price of uniqueness

Martin Vetterli, Ivan Dokmanic, Miranda Krekovic

We study simultaneous localization and mapping with a device that uses reflections to measure its distance from walls. Such a device can be realized acoustically with a synchronized collocated source and receiver; it behaves like a bat with no capacity for ...

Ieee2017

Models of the strongly lensed quasar DES J0408-5354

Eduardo Sanchez, Frédéric Courbin, Georges Meylan, Cameron Alexander Campbell Lemon, Hung-Hsu Chan, Vivien François Bonvin, Adriano Agnello

We present detailed modelling of the recently discovered, quadruply lensed quasar J0408-5354, with the aim of interpreting its remarkable configuration: besides three quasar images (A, B, D) around the main deflector (G1), a fourth image (C) is significant ...

Oxford Univ Press2017

Abell 2744: too much substructure for Lambda CDM?

David Richard Harvey, Mathilde Jauzac, Richard Massey

The massive substructures found in Abell 2744 by Jauzac et al. present a challenge to the cold dark matter paradigm due to their number and proximity to the cluster centre. We use one of the biggest N-body simulations, the Millennium XXL, to investigate th ...

Oxford Univ Press2017

Enhancement of Auger recombination induced by carrier localization in InGaN/GaN quantum wells

Nicolas Grandjean, Benoît Marie Joseph Deveaud, Raphaël Butté, Gwénolé Jean Jacopin, Wei Liu, Georg Rossbach, Mehran Shahmohammadi, Lise Lahourcade

The origin of efficiency droop in state-of-the-art quality In GaN/GaN and GaN/AlGaN quantum wells (QWs) grown on various crystal planes is studied by means of time-resolved photoluminescence spectroscopy associated with a precise determination of the QW ca ...

Amer Physical Soc2017

Flexibeam: Analytic Spatial Filtering By Beamforming

Paul Hurley, Matthieu Martin Jean-André Simeoni

We propose a new, general, method for spatial filtering by beam-forming. The desired filter, specified analytically on an n-dimensional sphere, is extended to n+1-dimensional Euclidean space. A continuous beamforming function is then obtained by the n+1-di ...

Ieee2016

Space lower bounds for low-stretch greedy embeddings

Christos Kalaitzis

Greedy (geometric) routing is an important paradigm for routing in communication networks. It uses an embedding of the nodes of a network into points of a space (e.g., R-d) equipped with a distance function (e.g., the Euclidean distance l(2)) and uses as a ...

Elsevier Science Bv2016

Stochastic Spectral Descent for Discrete Graphical Models

Volkan Cevher, Ya-Ping Hsieh, Edo Collins

Interest in deep probabilistic graphical models has increased in recent years, due to their state-of-the-art perfor- mance on many machine learning applications. Such models are typically trained with the stochastic gradient method, which can take a signif ...

Ieee-Inst Electrical Electronics Engineers Inc2016

Beamforming towards regions of interest for multi-site mobile networks

Paul Hurley, Matthieu Martin Jean-André Simeoni

We show how a beamforming technique for analytical spatial filtering, called Flexibeam, can be applied to mobile phone mast broadcasting so as to result in concentrations of power where most devices are. To that end, Flexibeam is interpreted as transmissio ...

2016

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Euclidean plane

From Tarski's Plank Problem to Simultaneous Approximation

Omnidirectional bats, point-to-plane distances, and the price of uniqueness

Models of the strongly lensed quasar DES J0408-5354

Abell 2744: too much substructure for Lambda CDM?

Enhancement of Auger recombination induced by carrier localization in InGaN/GaN quantum wells

Simultaneous Approximation of Polynomials

Flexibeam: Analytic Spatial Filtering By Beamforming

Space lower bounds for low-stretch greedy embeddings

Stochastic Spectral Descent for Discrete Graphical Models

Beamforming towards regions of interest for multi-site mobile networks

Graph Chatbot

Chat with Graph Search

Abell 2744: too much substructure for Lambda CDM?

Simultaneous Approximation of Polynomials

Space lower bounds for low-stretch greedy embeddings

Stochastic Spectral Descent for Discrete Graphical Models

Flexibeam: Analytic Spatial Filtering By Beamforming

Beamforming towards regions of interest for multi-site mobile networks

From Tarski's Plank Problem to Simultaneous Approximation

Omnidirectional bats, point-to-plane distances, and the price of uniqueness

Models of the strongly lensed quasar DES J0408-5354

Enhancement of Auger recombination induced by carrier localization in InGaN/GaN quantum wells