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  • Srednie Veka

    Czasopisma

    ISSN: 0131-8780

  • Weak forms of shadowing in topological dynamics

    Publikacja

    We consider continuous maps of compact metric spaces. It is proved that every pseudotrajectory with sufficiently small errors contains a subsequence of positive density that is point-wise close to a subsequence of an exact trajectory with the same indices. Also, we study homeomor- phisms such that any pseudotrajectory can be shadowed by a finite number of exact orbits. In terms of numerical methods this property (we call it multishadowing)...

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  • Weak Stability of Centred Quadratic Stochastic Operators

    Publikacja

    We consider the weak convergence of iterates of so-called centred quadratic stochastic operators. These iterations allow us to study the discrete time evolution of probability distributions of vector-valued traits in populations of inbreeding or hermaphroditic species, whenever the offspring’s trait is equal to an additively perturbed arithmetic mean of the parents’ traits. It is shown that for the existence of a weak limit, it...

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  • Dirac fermions and possible weak antilocalization in LaCuSb2

    Publikacja
    • J. Chamorro
    • A. Topp
    • Y. Fang
    • M. J. Winiarski
    • C. R. Ast
    • M. Krivenkov
    • A. Varykhalov
    • B. J. Ramshaw
    • L. Schoop
    • T. McQueen

    - APL Materials - Rok 2019

    Layered heavy-metal square-lattice compounds have recently emerged as potential Dirac fermion materials due to bonding within those sublattices. We report quantum transport and spectroscopic data on the layered Sb square-lattice material LaCuSb2. Linearly dispersing band crossings, necessary to generate Dirac fermions, are experimentally observed in the electronic band structure observed using angle-resolved photoemission spectroscopy,...

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  • Amplifying the Randomness of Weak Sources Correlated With Devices

    Publikacja

    - IEEE TRANSACTIONS ON INFORMATION THEORY - Rok 2017

    The problem of device-independent randomness amplification against no-signaling adversaries has so far been studied under the assumption that the weak source of randomness is uncorrelated with the (quantum) devices used in the amplification procedure. In this paper, we relax this assumption, and reconsider the original protocol of Colbeck and Renner using a Santha-Vazirani (SV) source. To do so, we introduce an SV-like condition...

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  • Complexity of weak acceptonic conditions in tree automata

    Publikacja

    - INFORMATION PROCESSING LETTERS - Rok 2002

    Rozważano złożoność problemu pustości dla automatów na drzewach ze słabymi warunkami akceptowalności. Rozważano także translacje pomiędzy słabymi i silnymi warunkami akceptowalności.

  • Mineral and Organic Matter Constituents in Weak Interfaces in Shales

    Publikacja

    - Rok 2016

    This paper identifies formation interfaces that would appear to be "weak interfaces", in the Jurassic, Early- Cretaceous Vaca Muerta formation, in the Neuquén Basin, Argentina. Significant distribution of the weak interfaces was observed including contacts between volcanic ash layers of varying thicknesses, calcite-filled veins, and contacts between lithology changes, such as between argillaceous mudstone and mottled carbonates....

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  • Linear Pantographic Sheets: Existence and Uniqueness of Weak Solutions

    Publikacja

    - JOURNAL OF ELASTICITY - Rok 2018

    we address the well-posedness of the planar linearized equilibrium problem for homogenized pantographic lattices. To do so: (i) we introduce a class of subsets of anisotropic Sobolev’s space as the most suitable energy space E relative to assigned boundary conditions; (ii) we prove that the considered strain energy density is coercive and positive definite in E ; (iii) we prove that the set of placements for which the strain...

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  • Karto-Teka Gdańska

    Czasopisma

    ISSN: 2720-2054 , eISSN: 2545-2231

  • Istorija 20 Veka

    Czasopisma

    ISSN: 0352-3160 , eISSN: 2560-3647