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Browsing Colecția instituțională by Author "ALBU, I. D."

Browsing Colecția instituțională by Author "ALBU, I. D."

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  • Connexions métriquesk-plates 
    ALBU, I. D. (Springer Nature Switzerland, 1977)
    En effet, soit/~. une connexion m~ trique de M dont la distribution horizontale est zln. La structure de trivialisation de~, pour chaque x EM, assure l'existence d'une section locale cr~: U-~ OhM, xE U. Pour n'importe quel ...
  • Euler-Poincarè-Poisson Equations for Semidirect Products and Principal Bundles 
    OPRIŞ, D.; ALBU, I. D. (Politehnica University of Bucharest, 1999)
    A variational approach for a discrete Lagranian on a semidirect product and on principal bundle is developed.
  • Geometrical Aspects of the Covariant Dynamics of Higher Order 
    OPRIŞ, D.; ALBU, I. D. (Springer Nature Switzerland, 1998)
    We present some geometrical aspects of a higher-order jet bundle which is considered a suitable framework for the study of higher-order dynamics in continuous media. We generalize some results obtained by A. Vondra, [7]. ...
  • Mathematical Model for Diamond-Type Crystals with Impurities or Defects 
    OPRIŞ, D.; ALBU, I. D. (Politehnica University of Bucharest, 1998)
    This work develops the geometry and dynamics of diamond-type crystals with impurities or defects and symmetry from the perspective of Langrangian mechanics. We begin by formulating continuous–discret Lagnge-d`Alembert ...
  • On the discrete-continuous dynamical systems 
    OPRIS, D.; ALBU, I. D. (Universitatea “Al. I. Cuza” Iaşi, 1997)
    The main idea of our study is a direct treatise of the dynamical systems of discrete-continuous type our aim is to: formulate a discrete-continuous variational principle and deduce the discrete-continuous Euler-Lagrange ...
  • Stochastic generalized fractional HP equations and applications 
    ALBU, I. D.; NEAMŢU, M.; OPRIŞ, D. (Cornell University, 2009)
    In this paper we established the condition for a curve to satisfy stochastic generalized fractional HP (Hamilton-Pontryagin) equations. These equations are described using Itˆo integral. We have also considered the case ...

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