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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

Сортувати за: Порядок: Результатів:

  • Whitham's Method and Dubrovin-Novikov Bracket in Single-Phase and Multiphase Cases 
    Maltsev, A.Y. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    In this paper we examine in detail the procedure of averaging of the local field-theoretic Poisson brackets proposed by B.A. Dubrovin and S.P. Novikov for the method of Whitham. The main attention is paid to the questions ...
  • Whitney’s jets for Sobolev functions 
    Bojarski, B. (Український математичний журнал, 2007)
    We present two fundamental facts of the jet theory for Sobolev spaces Wmp. One of them is that the formal differentiation of k-jets theory is compatible with the pointwise definition of Sobolev (m − 1)-jet spaces on regular ...
  • Who's Afraid of the Hill Boundary? 
    Montgomery, R. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    The Jacobi-Maupertuis metric allows one to reformulate Newton's equations as geodesic equations for a Riemannian metric which degenerates at the Hill boundary. We prove that a JM geodesic which comes sufficiently close to ...
  • Why Do the Relativistic Masses and Momenta of Faster-than-Light Particles Decrease as their Speeds Increase? 
    Madarász, J.X.; Stannett, M.; Székely, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    It has recently been shown within a formal axiomatic framework using a definition of four-momentum based on the Stückelberg-Feynman-Sudarshan-Recami ''switching principle'' that Einstein's relativistic dynamics is logically ...
  • Wiener criterion for relaxed Dirichlet problem relative to Riemannian p-homogeneous Dirichlet forms 
    Biroli, M.; Dal Fabbro, F.; Marchi, S. (Український математичний вісник, 2008)
    We give a Wiener criterion for the relaxed Dirichlet problem relative to a Riemannian p-homogeneous Dirichlet form.
  • Wigner Distribution Functions and the Representation of Canonical Transformations in Time-Dependent Quantum Mechanics 
    Schuch, D.; Moshinsky, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    For classical canonical transformations, one can, using the Wigner transformation, pass from their representation in Hilbert space to a kernel in phase space. In this paper it will be discussed how the time-dependence of ...
  • Wigner Quantization of Hamiltonians Describing Harmonic Oscillators Coupled by a General Interaction Matri 
    Regniers, G.; Van der Jeugt, Joris (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    In a system of coupled harmonic oscillators, the interaction can be represented by a real, symmetric and positive definite interaction matrix. The quantization of a Hamiltonian describing such a system has been done in the ...
  • Witt equivalence of function fields of conics 
    Gladki, P.; Marshall, M. (Algebra and Discrete Mathematics, 2020)
    Two fields are Witt equivalent if, roughly speaking, they have the same quadratic form theory. Formally, that is to say that their Witt rings of symmetric bilinear forms are isomorphic. This equivalence is well understood ...
  • WKB Approximation in Noncommutative Gravity 
    Buric, M.; Madore, J.; Zoupanos, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    We consider the quasi-commutative approximation to a noncommutative geometry defined as a generalization of the moving frame formalism. The relation which exists between noncommutativity and geometry is used to study the ...
  • Wong's Equations and Charged Relativistic Particles in Non-Commutative Space 
    Balasin, H.; Blaschke, D.N.; Gieres, F.; Schweda, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    In analogy to Wong's equations describing the motion of a charged relativistic point particle in the presence of an external Yang-Mills field, we discuss the motion of such a particle in non-commutative space subject to ...
  • Wong’s oscillation theorem for second-order delay differential equations 
    Özbekler, A.; Zafer, A. (Нелінійні коливання, 2016)
    Let H(t) := ∫1/(r(s)z²(s)) (∫z(k)f(k)dk) ds, where z is a positive solution of (r(t)x')' + q(t)x = 0, t ≥ a, satisfying ∫1 / (r(s)z²(s)) ds < ∞. It is well known that, see [J. S. W. Wong, J. Math. Anal. and ...
  • Word length in symmetrized presentations of Thompson’s group F 
    Horak, M.; Johnson, A.; Stonesifer, A. (Algebra and Discrete Mathematics, 2012)
    Thompson's groups F, T and Z were introduced by Richard Thompson in the 1960's in connection with questions in logic. They have since found applications in many areas of mathematics including algebra, logic and topology, ...
  • Wqˡ-regularity of solutions to systems of partial differential equations 
    Kopylov, A.P. (Нелинейные граничные задачи, 2004)
    We obtain a solution, in a sense final from the standpoint of the theory of Sobolev spaces, to the problem of Wqˡ-regularity of solutions to a system of (generally) nonlinear partial differential equations in the case where ...
  • Wreath product of Lie algebras and Lie algebras associated with Sylow p-subgroups of finite symmetric groups 
    Sushchansky, V.I.; Netreba, N.V. (Algebra and Discrete Mathematics, 2005)
    We define a wreath product of a Lie algebra L with the one-dimensional Lie algebra L1 over Fp and determine some properties of this wreath product. We prove that the Lie algebra associated with the Sylow p-subgroup of ...
  • Wreath product of metric spaces 
    Oliynyk, B. (Algebra and Discrete Mathematics, 2007)
    This paper describes a new construction of wreath product of metric spaces. The group of isometries of the wreath product of metric spaces is calculated.
  • X-перестановочные максимальные подгруппы силовских подгрупп конечных групп 
    Го Вэньбинь; Шам, К.П.; Скиба, А.Н. (Український математичний журнал, 2006)
    Вивчаються скінченш групи, у яких максимальні підгрупи силовських підгруп є переставними з максимальними пiдгрупами.
  • Yang-Baxter Maps from the Discrete BKP Equation 
    Kakei, S.; Nimmo, J; Willox, R. (Symmetry, Integrability and Geometry: Methods and Applications, 2010)
    We construct rational and piecewise-linear Yang–Baxter maps for a general N-reduction of the discrete BKP equation.
  • Yangian of the Strange Lie Superalgebra of Qn₋₁ Type, Drinfel'd Approach 
    Stukopin, V. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    The Yangian of the strange Lie superalgebras in Drinfel'd realization is defined. The current system generators and defining relations are described.
  • Yetter–Drinfel’d Hopf algebras on basic cycle 
    Yanhua Wang; Guohua Liu (Український математичний журнал, 2014)
    A class of Yetter–Drinfel’d Hopf algebras on basic cycle is constructed.
  • Yuriy Drozd (dedicated to 75th Birthday) 
    Автор відсутній (Algebra and Discrete Mathematics, 2019)
    On October 15, 2019 an outstanding Ukrainian mathematician, one of the founders of Kyiv algebraic school Yuriy Drozd celebrated his 75th birthday.

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