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  • Publication . Article . Preprint . 2021 . Embargo End Date: 01 Jan 2020
    Open Access
    Authors: 
    Bogdan-Vasile Matioc; G Georg Prokert;
    Publisher: arXiv
    Country: Netherlands

    We study the two-phase Stokes flow driven by surface tension with two fluids of equal viscosity, separated by an asymptotically flat interface with graph geometry. The flow is assumed to be two-dimensional with the fluids filling the entire space. We prove well-posednes...

  • Open Access
    Authors: 
    Lange, Theresa;
    Publisher: IOP Publishing
    Country: Germany

    We provide a rigorous derivation of the Ensemble Kalman-Bucy Filter as well as the Ensemble Transform Kalman-Bucy Filter in case of nonlinear, unbounded model and observation operators. We identify them as the continuous time limit of the discrete-time Ensemble Kalman F...

  • Publication . Article . Preprint . 2021 . Embargo End Date: 01 Jan 2020
    Open Access
    Authors: 
    Johannes Klaus Fichte; Markus Hecher; Florim Hamiti;
    Publisher: arXiv

    Many computational problems in modern society account to probabilistic reasoning, statistics, and combinatorics. A variety of these real-world questions can be solved by representing the question in (Boolean) formulas and associating the number of models of the formula ...

  • Publication . Article . Preprint . 2021
    Open Access English
    Authors: 
    Anat Ganor; C S Karthik; Dömötör Pálvölgyi;
    Project: EC | COMPECON (740282)

    Brouwer’s fixed point theorem states that any continuous function from a compact convex space to itself has a fixed point. Roughgarden and Weinstein (FOCS 2016) initiated the study of fixed point computation in the two-player communication model, where each player gets...

  • Open Access English
    Authors: 
    F C Salgado; N Cavanagh; M Tamburini; D W Storey; R Beyer; P H Bucksbaum; Z Chen; A Di Piazza; E Gerstmayr; null Harsh; +16 more
    Publisher: GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
    Countries: Denmark, Germany, United Kingdom

    New journal of physics 24(1), 015002 (2022). doi:10.1088/1367-2630/ac4283

  • Publication . Preprint . Article . 2021
    Open Access
    Authors: 
    Michael L. Hecht; Krzysztof Gonciarz; Szabolcs Horvát;

    The classical NP-hard feedback arc set problem (FASP) and feedback vertex set problem (FVSP) ask for a minimum set of arcs $\varepsilon \subseteq E$ or vertices $\nu \subseteq V$ whose removal $G\setminus \varepsilon$, $G\setminus \nu$ makes a given multi-digraph $G=(V,...

  • Open Access
    Authors: 
    Rusanovsky, Matan; Beeri, Ofer; Oren, Gal;
    Publisher: Springer Science and Business Media LLC

    Metallography is crucial for a proper assessment of material's properties. It involves mainly the investigation of spatial distribution of grains and the occurrence and characteristics of inclusions or precipitates. This work presents an holistic artificial intelligence...

  • Open Access
    Authors: 
    Dreybrodt, Wolfgang; Fohlmeister, Jens;
    Country: Germany

    Degassing of CO2 and precipitation of calcite to the surface of stalagmites can strongly impact isotope signals imprinted into the calcite of these speleothems. Here, we show that in all the variety of conditions occurring in nature only two distinct types of degassing ...

  • Open Access English
    Authors: 
    Seibel, Daniel;

    Time-domain Boundary Element Methods (BEM) have been successfully used in acoustics, optics and elastodynamics to solve transient problems numerically. However, the storage requirements are immense, since the fully populated system matrices have to be computed for a lar...

  • Open Access English
    Authors: 
    Li, S. X.; Cui, J. X.; Babu, V.; Li, J.; Li, L. K.; Li, Y.; Gioi, L. Li; Libby, J.; Liventsev, D.; Martini, A.; +190 more
    Country: Germany

    We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay $\Lambda_c^+ \to p \eta'$ with $\eta' \to \eta\pi^+\pi^-$, using a data sample corresponding to an integrated luminosity of 981 $\rm fb^{-1}$, collected by the Belle ...