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Feb 08, 2018
Group Theory
Algebraic Geometry

Le but de cette partie est d’exhiber un graphe Gromov-hyperbolique naturel sur lequel le groupe de Cremona agit. Le premier candidat est « le graphe d’adjacence » qui est une sorte de graphe dual au pavage de Voronoï, codant la géométrie des cellule…

Graphes associés au groupe de Cremona

To reinforce the analogy between the mapping class group and the Cremona group of rank 2 over an algebraic closed field, we look for a graph analoguo…
Feb 06, 2018
Analysis of PDEs

The main idea in the proof of both Theorems 1 and 4 consists in constructing the velocity field v and the associated solution θ by patching together a countable number of velocity fields un and solutions ρn saturating Grönwall’s inequality, the exis…

Loss of regularity for the continuity equation with non-Lipschitz v…

We consider the Cauchy problem for the continuity equation in space dimension ${d \geq 2}$. We construct a divergence-free velocity field uniformly b…
May 16, 2018
Analysis of PDEs
Classical Analysis and ODEs
Functional Analysis
Mathematical Physics

We begin with the following result.

A sharp rearrangement principle in Fourier space and symmetry results…

We prove sharp inequalities for the symmetric-decreasing rearrangement in Fourier space of functions in $\mathbb{R}^d$. Our main result can be applie…
Aug 29, 2013
Chemical Physics
Atomic and Molecular Clusters
Atomic Physic

Specific chemical reactivities of spatially separated 3-aminophenol …

Many molecules exhibit multiple rotational isomers (conformers) that interconvert thermally and are difficult to isolate. Consequently, a precise cha…
Oct 10, 2018
Multimedia
Information Retrieval

V3C - a Research Video Collection

With the widespread use of smartphones as recording devices and the massive growth in bandwidth, the number and volume of video collections has incre…
Jan 17, 2019
Instrumentation and Detectors
Applied Physics

Force sensing with nanowire cantilevers

Nanometer-scale structures with high aspect ratio such as nanowires and nanotubes combine low mechanical dissipation with high resonance frequencies,…
Nov 26, 2018
Methodology
Artificial Intelligence

Estimating Causal Effects With Partial Covariates For Clinical Inte…

Estimating the causal effects of an intervention in the presence of confounding is a frequently occurring problem in applications such as medicine. T…
Dec 17, 2018
Mesoscale and Nanoscale Physics

Spectroscopy of the superconducting proximity effect in nanowires usi…

The superconducting proximity effect has been the focus of significant research efforts over many years and has recently attracted renewed interest a…
Apr 24, 2015
Materials Science

Low-density silicon allotropes for photovoltaic applications

Silicon materials play a key role in many technologically relevant fields, ranging from the electronic to the photovoltaic industry. A systematic sea…
Nov 03, 2016

One-loop pseudo-Goldstone masses in the minimal $SO(10)$ Higgs model

We calculate the prominent perturbative contributions shaping the one-loop scalar spectrum of the minimal non-supersymmetric renormalizable $SO(10)$ …
Oct 02, 2011

Photoproduction of mesons off nuclei

Recent results for the photoproduction of mesons off nuclei are reviewed. These experiments have been performed for two major lines of research relat…
Feb 23, 2016
History and Overview
Complex Variables
Geometric Topology

On the early history of moduli and Teichm{ü}ller spaces

We survey some major contributions to Riemann's moduli space and Teichm{\"u}ller space. Our report has a historical character, but the stress is on t…
Dec 10, 2018
Computers and Society

Open Power System Data - Frictionless data for electricity system m…

The quality of electricity system modelling heavily depends on the input data used. Although a lot of data is publicly available, it is often dispers…
Nov 07, 2015

Impact of other scalar fields on oscillons after hilltop inflation

Oscillons are spatially localized and relatively stable field fluctuations which can form after inflation under suitable conditions. In order to rehe…
Mar 08, 2010

Atom chip based generation of entanglement for quantum metrology

Atom chips provide a versatile `quantum laboratory on a microchip' for experiments with ultracold atomic gases. They have been used in experiments on…
Feb 27, 2019
Multimedia

Deep Learning-based Concept Detection in vitrivr at the Video Browser…

This paper presents an after-the-fact summary of the participation of the vitrivr system to the 2019 Video Browser Showdown. Analogously to last year…
May 15, 2007
Mesoscale and Nanoscale Physics

Controlled formation of metallic nanowires via Au nanoparticle ac t…

Applying ac voltages, we trapped gold nanoparticles between microfabricated electrodes under well-defined conditions. We demonstrate that the nanopar…
Sep 05, 2018
Chemical Physics

Alchemical perturbation density functional theory

We introduce an electron density functional approximation which is based on alchemical perturbation theory. The electron density of {\em any} given i…
Mar 02, 2017
Mesoscale and Nanoscale Physics
Optics

Deterministic enhancement of coherent photon generation from a nitr…

The nitrogen-vacancy (NV) center in diamond has an optically addressable, highly coherent spin. However, an NV center even in high quality single-cry…
May 24, 2016
Materials Science
Chemical Physics

Computationally Efficient Characterization of Potential Energy Surfac…

An analysis of the network defined by the potential energy minima of multi-atomic systems and their connectivity via reaction pathways that go throug…
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