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Сортувати за: Порядок: Результатів:

  • Sharko, V.V. (Український математичний журнал, 2007)
    Вивчаються гомотопічні інваріанти вільних коланцюгових та гільбертових комплексів. Ці L²-інваріанти застосовуються при обчисленні точних значень мінімальних чисел замкнених орбіт фіксованих індексів несингулярних потоків ...
  • Dinesh, T.; Ramakrishnan, T.V. (Algebra and Discrete Mathematics, 2013)
    The concept of graph structure was introduced by E. Sampathkumar in 'Generalised Graph Structures', Bull. Kerala Math. Assoc., Vol 3, No.2, Dec 2006, 65-123. Based on the works of Brouwer, Doob and Stewart, R.H. Jeurissen ...
  • Lyovin, S.V. (Культура народов Причерноморья, 2001)
    Il est bien utile de voir le terrain : L'économie de la Crimée est en phase de stabilisation. Les premières réformes économiques commencent à donner leurs fruits ( la privatisation et la zone de l'économie ouverte "Sivache"). ...
  • Naleskina, L.A.; Lukianova, N.Yu.; Sobchenko, S.O.; Storchai, D.M.; Chekhun, V.F. (Experimental Oncology, 2016)
    Aim: To determine the patterns of lactoferrin (LF) expression in breast cancer (BC) in relation to biologic properties of the neoplasms and clinical features of the disease course. Materials and Methods: Clinical specimens ...
  • Méndez-Fragoso, R.; Ley-Koo, E. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    Three sets of ladder operators in spheroconal coordinates and their respective actions on Lamé spheroconal harmonic polynomials are presented in this article. The polynomials are common eigenfunctions of the square of the ...
  • Ley-Koo, E.; Sun, G.-H. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    We report the identification and construction of raising and lowering operators for the complete eigenfunctions of isotropic harmonic oscillators confined by dihedral angles, in circular cylindrical and spherical coordinates; ...
  • Zakharchenko, E.V.; Shinsky, O.I.; Baglyuk, G.A.; Klimenko, S.I.; Kurovsky, V.Ya.; Sirenko, E.A.; Goncharov, A.L. (Наука та інновації, 2019)
    Introduction. In the world practice of foundry, modification has reached the status of leading direction of research and applied work to improve the technological and service properties of structural cast irons. Problem ...
  • Gerard, V. (Культура народов Причерноморья, 2005)
  • Kaparulin, D.S.; Lyakhovich, S.L.; Sharapov, A.A. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    A Poincaré covariant Lagrange anchor is found for the non-Lagrangian relativistic wave equations of Bargmann and Wigner describing free massless fields of spin s>1/2 in four-dimensional Minkowski space. By making use of ...
  • Filipkovska, M.S. (Журнал математической физики, анализа, геометрии, 2018)
    A semilinear differential-algebraic equation (DAE) is studied focusing on the Lagrange stability (instability). The conditions for the existence and uniqueness of global solutions (a solution exists on an infinite interval) ...
  • Pyshkin, P.V.; Kopeliovich, A.I.; Yanovsky, A.V. (Condensed Matter Physics, 2014)
    Lagrangian of electronic liquid in magneto-inhomogeneous micro-conductor has been constructed. A corresponding Euler-Lagrange equation has been solved. It was shown that the described system has eigenmodes of spin polarization ...
  • Choudhuri, A.; Talukdar, B.; Das, U. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    We derive a Lagrangian based approach to study the compatible Hamiltonian structure of the dispersionless KdV and supersymmetric KdV hierarchies and claim that our treatment of the problem serves as a very useful supplement ...
  • Li, S.; Stern, A.; Tang, X. (Symmetry, Integrability and Geometry: Methods and Applications, 2017)
    This paper develops a generalized formulation of Lagrangian mechanics on fibered manifolds, together with a reduction theory for symmetries corresponding to Lie groupoid actions. As special cases, this theory includes not ...
  • Vizman, C. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    We study the Euler-Lagrange equations for a parameter dependent G-invariant Lagrangian on a homogeneous G-space. We consider the pullback of the parameter dependent Lagrangian to the Lie group G, emphasizing the special ...
  • Chen, M. (Condensed Matter Physics, 2005)
    In this paper we consider the Lagrangian formulation of a system of second order quasilinear partial differential equations. Specifically we construct a Lagrangian vector field such that the flows of the vector field ...
  • Мигаль, А.В. (Український ботанічний журнал, 2017)
    Угорський вчений-ботанік. Навчався у Будапештському університеті й одночасно розпочав наукові дослідження рослинного покриву тогочасних угорських адміністративних областей Обоуй-Торна, Чонад, Чонград (сучасна Угорщина), ...
  • Ferrell, R.A.; Bhattacharjee, J.K. (Физика низких температур, 1998)
    We present some theoretical considerations that are relevant to the forthcoming measurements in microgravity of the specific heat of confined liquid helium (the flight experiment «СНЕХ»), Primary attention is devoted to ...
  • Bogdan, T.V.; Lizogub, V.G.; Savchenko, O.V.; Bogdan, V.V.; Vinokurova, А.S.; Orzheskovsky, V.V. (Доповіді НАН України, 2021)
    The article presents a specific clinical case and literature data on a rare finding in the heart cavity — Lambl’s filaments. Histologically, these are cells of fibroelastic tissue covered with stroma and epithelial layer. ...