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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

Сортувати за: Порядок: Результатів:

  • Repovš, D.; Sharko, V. (Український математичний журнал, 2012)
    We study S¹-Bott functions on compact smooth manifolds. In particular, we investigate S¹-invariant Bott functions on manifolds with circle action.
  • Eftekharinasab, K. (Український математичний журнал, 2010)
    We prove an infinite-dimensional version of Sard’s theorem for Fréchet manifolds. Let M (respectively, N) be a bounded Fréchet manifold with compatible metric d M (respectively, d N ) modeled on Fréchet spaces E (respectively, ...
  • Honda, N. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    We show that the total space of any affine C-bundle over CP¹ with negative degree admits an ALE scalar-flat Kähler metric. Here the degree of an affine bundle means the negative of the self-intersection number of the section ...
  • Altaisky, M.V. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    We consider a possibility to unify the methods of regularization, such as the renormalization group method, stochastic quantization etc., by the extension of the standard field theory of the square-integrable functions ...
  • Banakh, T.O.; Protasov, I.V.; Slobodianiuk, S.V. (Український математичний журнал, 2015)
    We define scattered subsets of a group as asymptotic counterparts of the scattered subspaces of a topological space and prove that a subset A of a group G is scattered if and only if A does not contain any piecewise shifted ...
  • Bogomolov, Ya.L.; Semenov, E.S.; Yunakovsky, A.D. (Нелинейные граничные задачи, 2006)
  • Bondarenko, I.; Kravchenko, R. (Український математичний журнал, 2013)
    We construct a faithful self-similar action of the discrete Heisenberg group with the following properties: This action is self-replicating, finite-state, level-transitive, and noncontracting. Moreover, there exist orbital ...
  • Nakayama, Yu (Symmetry, Integrability and Geometry: Methods and Applications, 2011)
    We investigate possibilities for a Schrödinger-like gravity with the dynamical critical exponent z=2, where the action only contains the first-order time derivative. The Horava gravity always admits such a relevant deformation ...
  • Simon, B. (2009)
    We prove that −Δ+V has purely discrete spectrum if V ≥ 0 and, for all M, |{x | V (x)<M}| < ∞ and various extensions.
  • Fourier, G.; Hernandez, D. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    In this note, inspired by the proof of the Kirillov-Reshetikhin conjecture, we consider tensor products of Kirillov-Reshetikhin modules of a fixed node and various level. We fix a positive integer and attach to each of its ...
  • Blondeau-Fournier, O.; Mathieu, P. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    Schur superpolynomials have been introduced recently as limiting cases of the Macdonald superpolynomials. It turns out that there are two natural super-extensions of the Schur polynomials: in the limit q=t=0 and q=t→∞, ...
  • Plaksa, S.A. (Український математичний вісник, 2019)
    We consider a generalized Cauchy–Riemann system with a rectilinear singular interval of the real axis. Schwarz boundary value problems for generalized analytic functions which satisfy the mentioned system are reduced to ...
  • Guttenberg, S.; Savvidy, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    This review is devoted to the Schwinger and Fronsdal theory of Abelian tensor gauge fields. The theory describes the propagation of free massless gauge bosons of integer helicities and their interaction with external ...
  • Xu, Y.; Li, X.H. (Український математичний журнал, 2014)
    We study the p-nilpotency of a group such that every maximal subgroup of its Sylow p-subgroups is s-conditionally permutable for some prime p. By using the classification of finite simple groups, we get interesting new ...
  • Hussain, I.; Mahomed, F.M.; Qadir, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    Following the use of approximate symmetries for the Schwarzschild spacetime by A.H. Kara, F.M. Mahomed and A. Qadir (Nonlinear Dynam., to appear), we have investigated the exact and approximate symmetries of the system of ...
  • Mellouli, N. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    This paper is the next step of an ambitious program to develop conformally equivariant quantization on supermanifolds. This problem was considered so far in (super)dimensions 1 and 1|1. We will show that the case of several ...
  • Lukashevich, N.A. (Нелінійні коливання, 2001)
    We study a system of linear singularly perturbed functional differential equations by the method of integral manifolds. We construct a change of variables that decomposes this system into two subsystems, an ordinary ...
  • Lukashevich, N.A. (Нелінійні коливання, 2001)
    We study a system of linear singularly perturbed functional differential equations by the method of integral manifolds. We construct a change of variables that decomposes this system into two subsystems, an ordinary ...
  • A.Di Bartolomeo; Quartieri, J.; Steri, S. (Нелінійні коливання, 2003)
    In this paper a general second order Cauchy problem in four dimensional space is considered and sufficient conditions for integrability with generalized Lie series method are determined.
  • Kiguradze, I.T. (Нелінійні коливання, 2008)
    For the differential equation u′′ = f(t, u, u′), where the function f : R × R² → R is periodic in the first argument and f(t, x, 0) ≡ 0, sufficient conditions for the existence of a continuum of nonconstant periodic solutions ...

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