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Перегляд Відділення математики за назвою

Репозиторій DSpace/Manakin

Перегляд Відділення математики за назвою

Сортувати за: Порядок: Результатів:

  • Quantum Symmetries for Exceptional SU(4) Modular Invariants Associated with Conformal Embeddings 
    Coquereaux, R.; Schieber, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    Three exceptional modular invariants of SU(4) exist at levels 4, 6 and 8. They can be obtained from appropriate conformal embeddings and the corresponding graphs have self-fusion. From these embeddings, or from their ...
  • Quasi-Bi-Hamiltonian Structures of the 2-Dimensional Kepler Problem 
    Cariñena, J.F.; Rañada, M.F. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    The existence of quasi-bi-Hamiltonian structures for the Kepler problem is studied. We first relate the superintegrability of the system with the existence of two complex functions endowed with very interesting Poisson ...
  • Quasicomplex N=2, d=1 Supersymmetric Sigma Models 
    Ivanov, E.A.; Smilga, A.V. (Symmetry, Integrability and Geometry: Methods and Applications, 2013)
    We derive and discuss a new type of N=2 supersymmetric quantum mechanical sigma models which appear when the superfield action of the (1,2,1) multiplets is modified by adding an imaginary antisymmetric tensor to the target ...
  • Quasi-duo Partial skew polynomial rings 
    Cortes, W.; Ferrero, M.; Gobbi, L. (Algebra and Discrete Mathematics, 2011)
    In this paper we consider rings R with a partial action α of Z on R. We give necessary and sufficient conditions for partial skew polynomial rings and partial skew Laurent polynomial rings to be quasi-duo rings and in this ...
  • Quasi-Euclidean duo rings with elementary reduction of matrices 
    Romaniv, O.; Sagan, A. (Algebra and Discrete Mathematics, 2015)
    We establish necessary and sufficient conditions under which a class of quasi-Euclidean duo rings coincides with a class of rings with elementary reduction of matrices. We prove that a Bezout duo ring with stable range 1 ...
  • Quasi-Exactly Solvable N-Body Spin Hamiltonians with Short-Range Interaction Potentials 
    Enciso, A.; Finkel, F.; González-López, A.; Rodríguez, M.A. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    We review some recent results on quasi-exactly solvable spin models presenting near-neighbors interactions. These systems can be understood as cyclic generalizations of the usual Calogero-Sutherland models. A nontrivial ...
  • Quasi-Exactly Solvable Schrödinger Operators in Three Dimensions 
    Fortin Boisvert, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    The main contribution of our paper is to give a partial classification of the quasi-exactly solvable Lie algebras of first order differential operators in three variables, and to show how this can be applied to the ...
  • Quasi-Frobenius Rings and Nakayama Permutations of Semiperfect Rings 
    Dokuchaev, M.A.; Kirichenko, V.V. (Український математичний журнал, 2002)
    We say that A is a ring with duality for simple modules, or simply a DSM-ring, if, for every simple right (left) A-module U, the dual module U* is a simple left (right) A-module. We prove that a semiperfect ring is a ...
  • Quasigraded Lie Algebras and Modified Toda Field Equations 
    Skrypnyk, T.V. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    We construct a family of quasigraded Lie algebras that coincide with the deformations of the loop algebras in "principal" gradation and admit Kostant-Adler-Symes scheme. Using them we obtain new Volterra coupled systems ...
  • Quasi-Grammian Solutions of the Generalized Coupled Dispersionless Integrable System 
    Haider, B.; Hassan, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    The standard binary Darboux transformation is investigated and is used to obtain quasi-Grammian multisoliton solutions of the generalized coupled dispersionless integrable system.
  • Quasi-Linear Algebras and Integrability (the Heisenberg Picture) 
    Vinet, L.; Zhedanov, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    We study Poisson and operator algebras with the ''quasi-linear property'' from the Heisenberg picture point of view. This means that there exists a set of one-parameter groups yielding an explicit expression of dynamical ...
  • Quasilinearization for resonant boundary-value problems with mixed boundary conditions 
    Sveikate, N.; Sadyrbaev, F. (Нелінійні коливання, 2014)
    We consider resonant problems of the type (i) x′′ + p(t)x′ + q(t)x = f (t, x, x′), (ii) x′(0) = 0, x(T) = 0, where p, q, f are continuous functions and the homogeneous problem (iii) x′′ + p(t)x′ + q(t)x = 0 with boundary-value ...
  • Quasi-unit regularity and QB-rings 
    Jianghua Li; Xiaoqing Sun; Xiaoqin Shen; Shangping Wang (Український математичний журнал, 2012)
    Some relations for quasiunit regular rings and QB-rings, as well as for pseudounit regular rings and QB ∞-rings, are obtained. In the first part of the paper, we prove that (an exchange ring R is a QB-ring) ⟺ (whenever x ...
  • Quasi-valuation maps based on positive implicative ideals in BCK-algebras 
    Young Bae Jun; Kyoung Ja Lee; Seok Zun Song (Algebra and Discrete Mathematics, 2018)
    The notion of PI-quasi-valuation maps of a BCK-algebra is introduced, and related properties are investigated. The relationship between an I-quasi-valuation map and a PI-quasivaluation map is examined. Conditions for an ...
  • Quivers of 3×3 exponent matrices 
    Dokuchaev, M.; Kirichenko, V.V.; Plakhotnyk, M. (Algebra and Discrete Mathematics, 2015)
    We show how to use generating exponent matrices to study the quivers of exponent matrices. We also describe the admissible quivers of 3×3 exponent matrices.
  • Quivers of 3×3-exponent matrices 
    Dokuchaev, M.; Kirichenko, V.V.; Plakhotnyk, M. (Algebra and Discrete Mathematics, 2015)
    We show how to use generating exponent matrices to study the quivers of exponent matrices. We also describe the admissible quivers of 3×3 exponent matrices.
  • Quiver Varieties and Branching 
    Nakajima, H. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    Braverman and Finkelberg recently proposed the geometric Satake correspondence for the affine Kac-Moody group Gaff [Braverman A., Finkelberg M., arXiv:0711.2083]. They conjecture that intersection cohomology sheaves on the ...
  • Quiver Varieties with Multiplicities, Weyl Groups of Non-Symmetric Kac-Moody Algebras, and Painlevé Equations 
    Yamakawa, D. (Symmetry, Integrability and Geometry: Methods and Applications, 2010)
    To a finite quiver equipped with a positive integer on each of its vertices, we associate a holomorphic symplectic manifold having some parameters. This coincides with Nakajima's quiver variety with no stability parameter/framing ...
  • q-Wakimoto Modules and Integral Formulae of Solutions of the Quantum Knizhnik-Zamolodchikov Equations 
    Kuroki, K. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    Matrix elements of intertwining operators between q-Wakimoto modules associated to the tensor product of representations of Uq(^sl2) with arbitrary spins are studied. It is shown that they coincide with the Tarasov-Varchenko's ...
  • Q-умовна симетрія нелінійного двовимірного рівняння теплопровідності 
    Сєров, М.І.; Тулупова, Л.О.; Андреєва, Н.В. (Український математичний журнал, 2000)
    Досліджено Q -умовну симетрію нелінійного двовимірного рівняння теплопровідності. За допомогою анзаців одержано редуковані рівняння.

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