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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

Сортувати за: Порядок: Результатів:

  • C2 Property of Column Finite Matrix Rings 
    Liang Shen; Jianlong Chen (Український математичний журнал, 2014)
    A ring R is called a right C2 ring if any right ideal of R isomorphic to a direct summand of RR is also a direct summand. The ring R is called a right C3 ring if any sum of two independent summands of R is also a direct ...
  • C*-algebra generated by four projections with sum equal to 2 
    Savchuk, Y. (Algebra and Discrete Mathematics, 2004)
    We describe the C*-algebra generated by four orthogonal projections p₁,p₂,p₃,p₄, satisfying the linear relation p₁ + p₂ + p₃ + p₄ = 2I. The simplest realization by 2 × 2-matrixfunctions over the sphere S² is given.
  • Calogero Model(s) and Deformed Oscillators 
    Milekovic, M.; Meljanac, S.; Samsarov, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    We briefly review some recent results concerning algebraical (oscillator) aspects of the N-body single-species and multispecies Calogero models in one dimension. We show how these models emerge from the matrix generalization ...
  • Camina groups with few conjugacy classes 
    Cangelmi, L.; Muktibodh, A.S. (Algebra and Discrete Mathematics, 2010)
    Let G be a finite group having a proper normal subgroup K such that the conjugacy classes outside K coincide with the cosets of K. The subgroup K turns out to be the derived subgroup of G, so the group G is either abelian ...
  • Cancellable elements of the lattice of semigroup varieties 
    Gusev, S.V.; Skokov, D.V.; Vernikov, B.M. (Algebra and Discrete Mathematics, 2018)
    We completely determine all commutative semigroup varieties that are cancellable elements of the lattice SEM of all semigroup varieties. In particular, we verify that a commutative semigroup variety is a cancellable element ...
  • Cancellation ideals of a ring extension 
    Tchamna, S. (Algebra and Discrete Mathematics, 2021)
    We study properties of cancellation ideals of ring extensions. Let R ⊆ S be a ring extension. A nonzero S-regular ideal I of R is called a (quasi)-cancellation ideal of the ring extension R ⊆ S if whenever IB = IC for two ...
  • Cartan Connections and Lie Algebroids 
    Crampin, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    This paper is a study of the relationship between two constructions associated with Cartan geometries, both of which involve Lie algebroids: the Cartan algebroid, due to [Blaom A.D., Trans. Amer. Math. Soc. 358 (2006), ...
  • Cartan Connections on Lie Groupoids and their Integrability 
    Blaom, A.D. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    A multiplicatively closed, horizontal n-plane field D on a Lie groupoid G over M generalizes to intransitive geometry the classical notion of a Cartan connection. The infinitesimalization of the connection D is a Cartan ...
  • Categories of lattices, and their global structure in terms of almost split sequences 
    Rump, W. (Algebra and Discrete Mathematics, 2004)
    A major part of Iyama’s characterization of Auslander-Reiten quivers of representation-finite orders Λ consists of an induction via rejective subcategories of Λ-lattices, which amounts to a resolution of Λ as an isolated ...
  • Cauchy Problem for a Darboux Integrable Wave Map System and Equations of Lie Type 
    Vassiliou, P.J. (Symmetry, Integrability and Geometry: Methods and Applications, 2013)
    The Cauchy problem for harmonic maps from Minkowski space with its standard flat metric to a certain non-constant curvature Lorentzian 2-metric is studied. The target manifold is distinguished by the fact that the ...
  • Cauchy problem for the essentially infinite-dimensional heat equation on a surface in a Hilbert space 
    Bogdansky, Yu.V. (Український математичний журнал, 1995)
    It is proved that the Cauchy problem for a simple parabolic equation with essentially infinite-dimensional coefficients on bounded level surfaces of smooth functions in a Hilbert space is uniformly well posed.
  • Center of Twisted Graded Hecke Algebras for Homocyclic Groups 
    Gan, W.L.; Highfield, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    We determine explicitly the center of the twisted graded Hecke algebras associated to homocyclic groups. Our results are a generalization of formulas by M. Douglas and B. Fiol in [J. High Energy Phys. 2005 (2005), no. 9, ...
  • Central Configurations and Mutual Differences 
    Ferrario, D.L. (Symmetry, Integrability and Geometry: Methods and Applications, 2017)
    Central configurations are solutions of the equations λmjqj=∂U/∂qj, where U denotes the potential function and each qj is a point in the d-dimensional Euclidean space E≅Rd, for j=1,…,n. We show that the vector of the mutual ...
  • Certain Integrals Arising from Ramanujan's Notebooks 
    Berndt, B.C.; Straub, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    In his third notebook, Ramanujan claims the specific. In a following cryptic line, which only became visible in a recent reproduction of Ramanujan's notebooks, Ramanujan indicates that a similar relation exists if logx ...
  • Certain properties of triangular transformations of measures 
    Medvedev, K.V. (2008)
    We study the convergence of triangular mappings on R^n, i.e., mappings T such that the ith coordinate function Ti depends only on the variables x1, . . . ,xi. We show that, under broad assumptions, the inverse mapping to ...
  • Certain Regularity of the Entropy Solutions for Nonlinear Parabolic Equations with Irregular Data 
    Li, F. (Український математичний журнал, 2015)
    We introduce new sets of functions different both from the space introduced in [Ph. Bénilan, L. Boccardo, T. Gallouёt, R. Gariepy, M. Pierre, and J. L. Vazquez, Ann. Scuola Norm. Super. Pisa, 22, No. 2, 241–273 (1995)] and ...
  • Chaotifying 2-D piecewise linear maps via a piecewise linear controller function 
    Elhadj, Z.; Sprott, J.C. (Нелінійні коливання, 2010)
    A simple method for chaotifying piecewise linear maps of the plane using a piecewise linear controller function is given. A domain of chaosin the resulting controlled map was determined exactly and rigorously.
  • Characterization of A₁₆ by a noncommuting graph 
    Davoudi Monfared, М.; Darafsheh, M.R. (Український математичний журнал, 2010)
    Let G be a finite non-Abelian group. We define a graph Γ G ; called the noncommuting graph of G; with a vertex set G − Z(G) such that two vertices x and y are adjacent if and only if xy ≠ yx: Abdollahi, Akbari, and Maimani ...
  • Characterization of Chebyshev Numbers 
    Jacobs, D.P.; Trevisan, V.; Rayers, M.O. (Algebra and Discrete Mathematics, 2008)
    Let Tn(x) be the degree-n Chebyshev polynomial of the first kind. It is known [1,13] that Tp(x)≡xpmodp, when p is an odd prime, and therefore, Tp(a)≡amodp for all a. Our main result is the characterization of composite ...
  • Characterization of clones of boolean operations by identities 
    Butkote, R.; Denecke, K. (Algebra and Discrete Mathematics, 2007)
    In [4] the authors characterized all clones of Boolean operations (Boolean clones) by functional terms. In this paper we consider a Galois connection between operations and equations and characterize all Boolean clones ...

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