Перегляд за автором "Vu Tuan"

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  • Asymptotic Equivalence of Triangular Differential Equations in Hilbert Spaces 
    Dang Dinh Chau; Vu Tuan (Український математичний журнал, 2005)
    In this article, we study conditions for the asymptotic equivalence of differential equations in Hilbert spaces. We also discuss the relationship between the properties of solutions of differential equations of triangular ...
  • On the Asymptotic Behavior of Solutions of Differential Systems 
    Pham Van Viet; Vu Tuan (Український математичний журнал, 2005)
    There are many studies on the asymptotic behavior of solutions of differential equations. In the present paper, we consider another aspect of this problem, namely, the rate of the asymptotic convergence of solutions.
  • Some Results on Asymptotic Stability of Order α 
    Vu Thi Thu Huong; Vu Tuan (Український математичний журнал, 2005)
    Quasi-equiasymptotic stability of order α (α ∊ R₊*) with respect to a part of variables is considered. Some sufficient conditions, a converse theorem, and a theorem on multistability are proved.
  • Stability of Solutions of a Quasilinear Index-2 Tractable Differential Algebraic Equation by the Lyapunov Second Method 
    Vu Tuan; Pham Van Viet (Український математичний журнал, 2004)
    The Lyapunov second method is an important tool in the qualitative theory of ordinary differential equations. In this paper, we consider the behavior of solutions of quasilinear index-2 tractable differential algebraic ...