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Browsing School of Science and Technology (2015-2019) by Subject "Research Subject Categories::MATHEMATICS"

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Browsing School of Science and Technology (2015-2019) by Subject "Research Subject Categories::MATHEMATICS"

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  • A class of infinite convex geometries 
    Adaricheva, Kira; Nation, J.B. (2015)
    Various characterizations of finite convex geometries are well known. This note provides similar characterizations for possibly infinite convex geometries whose lattice of closed sets is strongly coatomic and lower ...
  • A free/open-source hybrid morphological disambiguation tool for Kazakh 
    Assylbekov, Zhenisbek; Washington, Jonathan; Tyers, Francis; Nurkas, Assulan; Sundetova, Aida; Karibayeva, Aidana; Abduali, Balzhan; Amirova, Dina (DOI: 10.13140/RG.2.2.12467.43045, 2016-04)
    This paper presents the results of developing a morphological disambiguation tool for Kazakh. Starting with a previously developed rule-based approach, we tried to cope with the complex morphology of Kazakh by breaking ...
  • Algebraic convex geometries revisited 
    Adaricheva, Kira (2014)
    Representation of convex geometry as an appropriate join of compatible orderings of the base set can be achieved, when closure operator of convex geometry is algebraic, or finitary. This bears to the finite case proved by ...
  • Algebraic numbers, hyperbolicity, and density modulo one 
    Kadyrov, Shirali; Gorodnik, A. (2011)
  • A Lumped-Parameter Model for Nonlinear Waves in Graphene 
    Wei, Dongming; Hazim, Hamad; Elgindi, Mohamed; Soukiassian, Yeran (2015)
    A lumped-parameter nonlinear spring-mass model which takes into account the third-order elastic sti ness constant is considered for mod- eling the free and forced axial vibrations of a graphene sheet with one xed end ...
  • Amount of failure of upper-semicontinuity of entropy in noncompact rank one situations, and hausdorff dimension 
    Kadyrov, Shirali; Pohl, A. (2012)
    Recently, Einsiedler and the authors provided a bound in terms of escape of mass for the amount by which upper-semicontinuity for metric entropy fails for diagonal ows on homogeneous spaces 􀀀nG, where G is any connected ...
  • Bernstein-walsh inequalities in higherdimensions over exponential curves 
    Kadyrov, Shirali; Lawrence, Mark (2011)
    Let x = (x1; : : : ; xd) 2 [􀀀1; 1]d be linearly independent over Z, set K = f(ez; ex1z; ex2z : : : ; exdz) : jzj 1g:We prove sharp estimates for the growth of a polynomial of degree n, in terms of En(x) := supfkPk d+1 ...
  • Characterization of Corneal Indentation Hysteresis 
    Wei, Dongming; Ko, Match W. L.; Leung, Christopher K.S (2015)
    The aim of this study is to design and develop a noninvasive corneal indentation method to measure the corneal hysteresis behavior under dynamic corneal indentation. Corneal indentation method is adapted for the design ...
  • Controllable asymmetric phase-locked states of the fundamental active photonic dimer 
    Kominis, Yannis; Kovanis, Vassilios; Bountis, Tassos (Physical Review, 2017-10-16)
    Coupled semiconductor lasers are systems possessing complex dynamics that are interesting for numerous applications in photonics. In this work, we investigate the existence and the stability of asymmetric phase-locked ...
  • Discovery of the D-basis in binary tables based on hypergraph dualization 
    Adaricheva, Kira; Nation, J.B. (2016)
    Discovery of (strong) association rules, or implications, is an important task in data management, and it nds application in arti cial intelligence, data mining and the semantic web. We introduce a novel approach for ...
  • Effective uniqueness of parry measure and exceptional sets in ergodic theory 
    Kadyrov, Shirali (2014)
    It is known that hyperbolic dynamical systems admit a unique invariant probability measure with maximal entropy. We prove an effective version of this statement and use it to estimate an upper bound for Hausdorff dimension ...
  • Embedding finite lattices into finite biatomic lattices 
    Adaricheva, Kira; Wehrung, Freidrich (2005)
    For a class C of finite lattices, the question arises whether any lattice in C can be embedded into some atomistic, biatomic lattice in C. We provide answers to the question above for C being, respectively, — The class ...
  • Entropy and escape of mass for SL3(Z)n SL3(R) 
    Einsiedler, Manfred; Kadyrov, Shirali (2011)
    We study the relation between measure theoretic entropy and escape of mass for the case of a singular diagonal flow on the moduli space of three-dimensional unimodular lattices
  • Escape of mass and entropy for diagonal flows in real rank one situations 
    Einsiedler, M.; Kadyrov, Shirali; Pohl, A. (2011)
    Let G be a connected semisimple Lie group of real rank 1 with finite center, let 􀀀 be a non-uniform lattice in G and a any diagonalizable element in G. We investigate the relation between the metric entropy of a acting ...
  • Exceptional sets in homogeneous spaces and hausdorff dimension 
    Kadyrov, Shirali (2015)
    In this paper we study the dimension of a family of sets arising in open dynamics. We use exponential mixing results for diagonalizable ows in compact homogeneous spaces X to show that the Hausdorff dimension of set of ...
  • Experiments with Russian to Kazakh sentence alignment 
    Assylbekov, Zhenisbek; Myrzakhmetov, Bagdat; Makazhanov, Aibek (The 4-th International Conference on Computer Processing of Turkic Languages “TurkLang 2016”, 2016)
    Sentence alignment is the final step in building parallel corpora, which arguably has the greatest impact on the quality of a resulting corpus and the accuracy of machine translation systems that use it for training. ...
  • Families without minimal numberings 
    Abeshev, K. Sh.; Badaev, S. A.; Mustafa, M. (2014)
  • Friedberg numberings in the Ershov hierarchy 
    Badaev, S. A.; Mustafa, M.; Sorbi, Andrea (2014)
    We show that for every n 1, there exists a 􀀀1n -computable family which up to equivalence has exactly one Friedberg numbering which does not induce the least element of the corresponding Rogers semilattice.
  • Join-semidistributive lattices of relatively convex sets 
    Adaricheva, Kira (2004)
    We give two sufficient conditions for the lattice Co(Rn,X) of rel- atively convex sets of Rn to be join-semidistributive, where X is a finite union of segments. We also prove that every finite lower bounded lattice can ...
  • Lattices of quasi-equational theories as congruence lattices of semilattices with operators, part I 
    Adaricheva, Kira; Nation, J. B. (2012)
    We show that for every quasivariety K of structures (where both functions and relations are allowed) there is a semilattice S with operators such that the lattice of quasi-equational theories of K (the dual of the lattice ...