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Asymptotic properties of third order functional dynamic equations on time scales

I. Kubiaczyk, S. H. Saker (2011)

Annales Polonici Mathematici

The purpose of this paper is to study the asymptotic properties of nonoscillatory solutions of the third order nonlinear functional dynamic equation [ p ( t ) [ ( r ( t ) x Δ ( t ) ) Δ ] γ ] Δ + q ( t ) f ( x ( τ ( t ) ) ) = 0 , t ≥ t₀, on a time scale , where γ > 0 is a quotient of odd positive integers, and p, q, r and τ are positive right-dense continuous functions defined on . We classify the nonoscillatory solutions into certain classes C i , i = 0,1,2,3, according to the sign of the Δ-quasi-derivatives and obtain sufficient conditions in order that C i = . Also, we establish...

Asymptotic properties of trinomial delay differential equations

Jozef Džurina, Renáta Kotorová (2008)

Archivum Mathematicum

The aim of this paper is to study asymptotic properties of the solutions of the third order delay differential equation 1 r ( t ) y ' ( t ) ' ' - p ( t ) y ' ( t ) + g ( t ) y ( τ ( t ) ) = 0 . * Using suitable comparison theorem we study properties of Eq. () with help of the oscillation of the second order differential equation.

Asymptotic relationship between solutions of two linear differential systems

Jozef Miklo (1998)

Mathematica Bohemica

In this paper new generalized notions are defined: Ψ -boundedness and Ψ -asymptotic equivalence, where Ψ is a complex continuous nonsingular n × n matrix. The Ψ -asymptotic equivalence of linear differential systems y ' = A ( t ) y and x ' = A ( t ) x + B ( t ) x is proved when the fundamental matrix of y ' = A ( t ) y is Ψ -bounded.

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