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531 research outcomes, page 1 of 54
  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Ram Band; Guillaume Lévy;
    Persistent Identifiers
    Publisher: HAL CCSD
    Project: EC | SPEGYONGRAPHSPLUS (618468)

    A finite discrete graph is turned into a quantum (metric) graph once a finite length is assigned to each edge and the one-dimensional Laplacian is taken to be the operator. We study the dependence of the spectral gap (the first positive Laplacian eigenvalue) on the choi...

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  • publication . Article . 2016
    Open Access English
    Authors:
    Shachar Maidenbaum; Galit Buchs; Sami Abboud; Ori Lavi-Rotbain; Amir Amedi;
    Persistent Identifiers
    Publisher: HAL CCSD
    Project: EC | BRAINVISIONREHAB (310809)

    International audience; Graphical virtual environments are currently far from accessible to blind users as their content is mostly visual. This is especially unfortunate as these environments hold great potential for this population for purposes such as safe orientation...

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  • publication . Preprint . Article . 2018
    Open Access English
    Authors:
    Ivano Baronchelli; Giulia Rodighiero; Harry I. Teplitz; Claudia Scarlata; Alberto Franceschini; S. Berta; Laia Barrufet; Mattia Vaccari; Matteo Bonato; Laure Ciesla; ...
    Persistent Identifiers
    Project: EC | HELP (607254)

    For a sample of star forming galaxies in the redshift interval 0.15$<$z$<$0.3, we study how both the relative strength of the AGN infra-red emission, compared to that due to the star formation (SF), and the numerical fraction of AGNs, change as a function of the total s...

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  • publication . Article . 2016
    Open Access
    Authors:
    Rachael H. James; Philippe Bousquet; Ingeborg Bussmann; Matthias Haeckel; Rolf Kipfer; Ira Leifer; Helge Niemann; Ilia Ostrovsky; Jacek Piskozub; Gregor Rehder; ...
    Project: EC | MIDAS (603418)

    Limnology and Oceanography, 61 (S1)

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  • publication . Article . Preprint . 2014
    Open Access English
    Authors:
    Pierre Simon;
    Persistent Identifiers
    Publisher: HAL CCSD
    Project: EC | MODAG (291111)

    This paper has two parts. In the first one, we prove that an invariant dp-minimal type is either finitely satisfiable or definable. We also prove that a definable version of the (p,q)-theorem holds in dp-minimal theories of small or medium directionality. In the second ...

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  • publication . Article . Report . Conference object . Other literature type . Preprint . 2014
    Open Access
    Authors:
    Ittai Abraham; Cyril Gavoille; Anupam Gupta; Ofer Neiman; Kunal Talwar;
    Publisher: Society for Industrial & Applied Mathematics (SIAM)
    Project: NSF | AF: Small: Approximation ... (1319811), EC | DIMENSION (303809), NSF | AF: Small: Future Directi... (1016799)

    We prove that any graph excluding Kr as a minor has can be partitioned into clusters of diameter at most Δ while removing at most O(r/Δ) fraction of the edges. This improves over the results of Fakcharoenphol and Talwar, who building on the work of Klein, Plotkin and Ra...

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  • publication . Article . Other literature type . Preprint . 2015
    Open Access English
    Authors:
    Ori Gurel-Gurevich; Asaf Nachmias; Juan Souto;
    Persistent Identifiers
    Publisher: HAL CCSD
    Project: NSERC , EC | RANDGEOM (676970)

    In this note we show that a bounded degree planar triangulation is recurrent if and only if the set of accumulation points of some/any circle packing of it is polar (that is, planar Brownian motion avoids it with probability 1). This generalizes a theorem of He and Schr...

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  • publication . Article . Other literature type . 2010
    Open Access English
    Authors:
    Danuta Wasserman; <