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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

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  • Generators and relations for the semigroups of increasing functions on N and Z 
    Doroshenko, V. (Algebra and Discrete Mathematics, 2005)
    The semigroups of all increasing functions over N and Z are considered. It is shown that both these semigroups do not admit an irreducible system of generators. In their subsemigroups of cofinite functions all irreducible ...
  • Generators and relations for wreath products 
    Drozd, Yu.A.; Skuratovskii, R.V. (Український математичний журнал, 2008)
    Generators and defining relations for wreath products of groups are given. Under a certain condition (conormality of generators), they are minimal.
  • Gentle m-Calabi-Yau tilted algebras 
    Garcia Elsener, A. (Algebra and Discrete Mathematics, 2020)
    We prove that all gentle 2-Calabi–Yau tilted algebras are Jacobian, moreover their bound quiver can be obtained via block decomposition. For two related families, the m-cluster-tilted algebras of type A and à , we prove ...
  • Geodesically Complete Lorentzian Metrics on Some Homogeneous 3 Manifolds 
    Bromberg, S.; Medina, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    In this work it is shown that a necessary condition for the completeness of the geodesics of left invariant pseudo-Riemannian metrics on Lie groups is also sufficient in the case of 3-dimensional unimodular Lie groups, and ...
  • Geodesic Equations on Diffeomorphism Groups 
    Vizman, C. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    We bring together those systems of hydrodynamical type that can be written as geodesic equations on diffeomorphism groups or on extensions of diffeomorphism groups with right invariant L² or H¹ metrics. We present their ...
  • Geodesic Flow and Two (Super) Component Analog of the Camassa-Holm Equation 
    Guha, P.; Olver, P.J. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    We derive the 2-component Camassa-Holm equation and corresponding N = 1 super generalization as geodesic flows with respect to the H1 metric on the extended Bott-Virasoro and superconformal groups, respectively.
  • Geodesic Reduction via Frame Bundle Geometry 
    Bhand, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2010)
    A manifold with an arbitrary affine connection is considered and the geodesic spray associated with the connection is studied in the presence of a Lie group action. In particular, results are obtained that provide insight ...
  • Geological nonhomogeneity of soils 
    Kaczyński, R.; Bąkowska, A. (2008)
    The nonhomogeneity of typical soils in Poland (Tertiary, Miocene and Pliocene clays, Quaternary glacial tills and loesses, Holocene fluvial sands) was analyzed in the paper. The analysis was limited to the presentation of ...
  • Geometrical equivalence and action type geometrical equivalence of group representations 
    Simoes da Silva, J.; Tsurkov, A. (Algebra and Discrete Mathematics, 2020)
    In this paper we construct an example of two representations (V₁,G₁) and (V₂,G₂) which are action type geometrically equivalent and groups G₁ and G₂ are geometrically equivalent, but the representations (V₁,G₁) and (V₂,G₂) ...
  • Geometric Aspects of the Painlevé Equations PIII(D₆) and PIII(D₇) 
    Marius van der Put; Top, J. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    The Riemann-Hilbert approach for the equations PIII(D6) and PIII(D7) is studied in detail, involving moduli spaces for connections and monodromy data, Okamoto-Painlevé varieties, the Painlevé property, special solutions ...
  • Geometric Constructions Underlying Relativistic Description of Spin on the Base of Non-Grassmann Vector-Like Variable 
    Deriglazov, A.A.; Pupasov-Maksimov, A.M. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    Basic notions of Dirac theory of constrained systems have their analogs in differential geometry. Combination of the two approaches gives more clear understanding of both classical and quantum mechanics, when we deal with ...
  • Geometric interpretation of quadratic centers 
    Gaiko, V.A. (Нелінійні коливання, 2003)
    Polynomial differential equations are considered. We apply Erugin’s two-isocline method for the global qualitative analysis of such equations and give a geometric interpretation of the quadratic centers.
  • Geometric Linearization of Ordinary Differential Equations 
    Qadir, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    The linearizability of differential equations was first considered by Lie for scalar second order semi-linear ordinary differential equations. Since then there has been considerable work done on the algebraic classification ...
  • Geometric Monodromy around the Tropical Limit 
    Yamamoto, Y. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    Let {Vq}q be a complex one-parameter family of smooth hypersurfaces in a toric variety. In this paper, we give a concrete description of the monodromy transformation of {Vq}q around q=∞ in terms of tropical geometry. The ...
  • Geometric Realizations of Bi-Hamiltonian Completely Integrable Systems 
    Beffa, G.M. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    In this paper we present an overview of the connection between completely integrable systems and the background geometry of the flow. This relation is better seen when using a group-based concept of moving frame introduced ...
  • Geometric Structures on Spaces of Weighted Submanifolds 
    Lee, B. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    In this paper we use a diffeo-geometric framework based on manifolds that are locally modeled on ''convenient'' vector spaces to study the geometry of some infinite dimensional spaces. Given a finite dimensional symplectic ...
  • Geometric Theory of the Recursion Operators for the Generalized Zakharov-Shabat System in Pole Gauge on the Algebra sl(n,C) with and without Reductions 
    Yanovski, A.B.; Vilasi, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    We consider the recursion operator approach to the soliton equations related to the generalized Zakharov-Shabat system on the algebra sl(n,C) in pole gauge both in the general position and in the presence of reductions. ...
  • Geometry monoid of the left distributivity and the left idempotency 
    Jedlicka, P. (Algebra and Discrete Mathematics, 2006)
    We construct here the geometry monoids of LDI (left distributive idempotent) and of LDLI (left distributive left idempotent) identities. We study their properties and construct a monoid with solvable word problem based ...
  • Geometry of Centroaffine Surfaces in R⁵ 
    Bushek, N.; Clelland, J.N. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    We use Cartan's method of moving frames to compute a complete set of local invariants for nondegenerate, 2-dimensional centroaffine surfaces in R⁵∖{0} with nondegenerate centroaffine metric. We then give a complete ...
  • Geometry of Centroaffine Surfaces in R⁵ 
    Bushek, N.; Clelland, J.N. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    We use Cartan's method of moving frames to compute a complete set of local invariants for nondegenerate, 2-dimensional centroaffine surfaces in R⁵∖{0} with nondegenerate centroaffine metric. We then give a complete ...

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