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  1. 721

    Color Confinement and Spatial Dimensions in the Complex-Sedenion Space by Zi-Hua Weng

    Published 2017-01-01
    “…In other words, in the complex-quaternion space, the “three colors” are only the spatial dimensions, rather than any property of physical substance.…”
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    Article
  2. 722
  3. 723

    More on (𝜶,𝜷)-Normal Operators in Hilbert Spaces by Rasoul Eskandari, Farzollah Mirzapour, Ali Morassaei

    Published 2012-01-01
    “…We study some properties of (𝛼,𝛽)-normal operators and we present various inequalities between the operator norm and the numerical radius of (𝛼,𝛽)-normal operators on Banach algebra ℬ(ℋ) of all bounded linear operators 𝑇∶ℋ→ℋ, where ℋ is Hilbert space.…”
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  4. 724

    Fixed Points of Nonlinear and Asymptotic Contractions in the Modular Space by A. Razani, E. Nabizadeh, M. Beyg Mohamadi, S. Homaei Pour

    Published 2007-01-01
    “…A fixed point theorem for nonlinear contraction in the modular space is proved. Moreover, a fixed point theorem for asymptotic contraction in this space is studied.…”
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    Article
  5. 725
  6. 726

    On some classes of almost periodic functions in abstract spaces by Dariusz Bugajewski, Gaston M. N'Guérékata

    Published 2004-01-01
    “…The superposition operator acting in the space of such functions is also under consideration. …”
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    Article
  7. 727

    On a certain class of nonstationary sequences in Hilbert space by Berrabah Bendoukha

    Published 2003-01-01
    “…We study the functions of correlation K(n,m)=〈X(n),X(m)〉 of certain sequences: X(n)=Tnx0, x0∈H where T is a contraction in Hilbert space H. By using the spectral methods of the nonunitary operators we give the general form of K(n,m) and its asymptotic behaviour limp→+∞ K(n+p,m+p).…”
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  8. 728

    Bregman Asymptotic Pointwise Nonexpansive Mappings in Banach Spaces by Chin-Tzong Pang, Eskandar Naraghirad

    Published 2013-01-01
    “…We first introduce a new class of mappings called Bregman asymptotic pointwise nonexpansive mappings and investigate the existence and the approximation of fixed points of such mappings defined on a nonempty, bounded, closed, and convex subset C of a real Banach space E. Without using the original Opial property of a Banach space E, we prove weak convergence theorems for the sequences produced by generalized Mann and Ishikawa iteration processes for Bregman asymptotic pointwise nonexpansive mappings in a reflexive Banach space E. …”
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  9. 729

    Lax Triples for Integrable Surfaces in Three-Dimensional Space by Jan L. Cieśliński, Artur Kobus

    Published 2016-01-01
    “…., Lax representations consisting of three linear equations) associated with families of surfaces immersed in three-dimensional Euclidean space E3. We begin with a natural integrable deformation of the principal chiral model. …”
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  10. 730
  11. 731

    On Multivalued Fuzzy Contractions in Extended b-Metric Spaces by Nayab Alamgir, Quanita Kiran, Hassen Aydi, Yaé Ulrich Gaba

    Published 2021-01-01
    “…In this paper, we establish a Hausdorff metric over the family of nonempty closed subsets of an extended b-metric space. Thereafter, we introduce the concept of multivalued fuzzy contraction mappings and prove related α-fuzzy fixed point theorems in the context of extended b-metric spaces that generalize Nadler’s fixed point theorem as well as many preexisting results in the literature. …”
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  12. 732

    The Near-Ring of Lipschitz Functions on a Metric Space by Mark Farag, Brink van der Merwe

    Published 2010-01-01
    “…This paper treats near-rings of zero-preserving Lipschitz functions on metric spaces that are also abelian groups, using pointwise addition of functions as addition and composition of functions as multiplication. …”
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    Article
  13. 733
  14. 734

    International Legal Regulation of Military Outer Space Activities by A. I. Antonov

    Published 2012-08-01
    Subjects: “…рrevention of an arms race in outer space…”
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  15. 735

    q-Hyperconvexity in Quasipseudometric Spaces and Fixed Point Theorems by Hans-Peter A. Künzi, Olivier Olela Otafudu

    Published 2012-01-01
    “…Journal of Function Spaces and Applications…”
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    Article
  16. 736

    Some Topological Properties of Fuzzy Antinormed Linear Spaces by Ljubiša D. R. Kočinac

    Published 2018-01-01
    “…We also discuss some boundedness properties in fuzzy antinormed linear spaces.…”
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    Article
  17. 737

    Continuous Quasi Gyrolinear Functionals on Möbius Gyrovector Spaces by Keiichi Watanabe

    Published 2020-01-01
    “…Journal of Function Spaces…”
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  18. 738
  19. 739

    Problem of spreading fake information in the Internet space analysis by T. N. Kameneva, A. V. Kulchitskiy, S. A. Kotlyarov, M. Yu. Kazaryan, E. S. Orlova

    Published 2023-10-01
    “…Modern Internet space is filled with various kinds of information, including unreliable, fake information. …”
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  20. 740