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  • Open Access English
    Authors: 
    K. Kovalenko; X. Dai; K. Alfaro-Bittner; A. M. Raigorodskii; M. Perc; S. Boccaletti;

    We give evidence that a population of pure contrarians globally coupled D-dimensional Kuramoto oscillators reaches a collective synchronous state when the interplay between the units goes beyond the limit of pairwise interactions. Namely, we will show that the presence ...

  • Publication . Preprint . Conference object . 2021
    Open Access English
    Authors: 
    Tiancheng Qin; S. Rasoul Etesami; Cesar A. Uribe;

    We consider the distributed learning problem where a network of $n$ agents seeks to minimize a global function $F$. Agents have access to $F$ through noisy gradients, and they can locally communicate with their neighbors a network. We study the Decentralized Local SDG m...

  • Publication . Other literature type . Preprint . Article . 2021
    Open Access English
    Authors: 
    Jelena Sedlar; Riste Škrekovski;
    Countries: Slovenia, Croatia

    A locally irregular graph is a graph in which the end-vertices of every edge have distinct degrees. A locally irregular edge coloring of a graph G is any edge coloring of G such that each of the colors induces a locally irregular subgraph of G. A graph G is colorable if...

  • Open Access English
    Authors: 
    Alexander Stangl; Adeel Riaz; Laetitia Rapenne; José Manuel Caicedo; Juan de Dios Sirvent; Federico Baiutti; Carmen Jiménez; Albert Tarancón; Michel Mermoux; Mónica Burriel;
    Country: Spain
    Project: EC | HARVESTORE (824072), EC | Thin-CATALYzER (840787)

    La2NiO4 is a very promising cathode material for intermediate and low temperature solid oxide cell applications, due to its good electronic and ionic conductivity, together with its high oxygen exchange activity with a low activation energy. Oxygen incorporation and tra...

  • Open Access English
    Authors: 
    Andjelka Stanić; Boštjan Brank; Adnan Ibrahimbegovic; Hermann G. Matthies;
    Country: Netherlands

    We show that for the simulation of crack propagation in quasi-brittle, two-dimensional solids, very good results can be obtained with an embedded strong discontinuity quadrilateral finite element that has incompatible modes. Even more importantly, we demonstrate that th...

  • Open Access
    Authors: 
    Irena Barjašić; Hrvoje Štefančić; Vedrana Pribicevic; Vinko Zlatić;
    Publisher: Springer Science and Business Media LLC
    Country: Croatia

    Motivated by the detection of cascades of defaults in economy, we developed a detection framework for an endogenous spreading based on causal motifs we define in this paper. We assume that the change of state of a vertex can be triggered by an endogenous or an exogenous...

  • Open Access English
    Authors: 
    Ricardo Gallego Torromé;

    The formal structure of Penrose's gravitationally induced reduction of the wave function mechanism is analyzed. It is shown that pushing Penrose's argument forward leads to the interpretation of quantum coherence in microscopic systems as an observable signature violati...

  • Open Access
    Authors: 
    M. Shrestha; Iain A. Steele; Shiho Kobayashi; N. Jordana-Mitjans; Rory Smith; Helen Jermak; Donald M. Arnold; C. G. Mundell; Andreja Gomboc; C. Guidorzi;
    Publisher: Oxford University Press (OUP)

    Long gamma-ray burst GRB 191016A was a bright and slow rising burst that was detected by the \textit{Swift} satellite and followed up by ground based Liverpool Telescope (LT). LT follow-up started $2411$-s after the \textit{Swift} Burst Alert Telescope (BAT) trigger usi...

  • Publication . Article . Preprint . 2021
    Open Access
    Authors: 
    Tong Chen; Jean B. Lasserre; Victor Magron; Edouard Pauwels;
    Publisher: Springer Science and Business Media LLC
    Country: France
    Project: EC | POEMA (813211), ANR | COPS (ANR-18-ERC2-0004)

    We introduce a sublevel Moment-SOS hierarchy where each SDP relaxation can be viewed as an intermediate (or interpolation) between the d-th and (d+1)-th order SDP relaxations of the Moment-SOS hierarchy (dense or sparse version). With the flexible choice of determining ...

  • Open Access English
    Authors: 
    Seyed Mahmoud Manjegani; Aljoša Peperko; H. Shokooh Saljooghi;

    Abstract We prove new explicit asymptotic formulae between (geometric) eigenvalues in max-algebra and classical distinguished eigenvalues of nonnegative matrices, which are useful tools for transferring results between both settings. We establish new inequalities for bo...