Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Raúl Naulin"'
Autor:
Lolimar Díaz, Raúl Naulin
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 24, Iss 8, Pp 549-562 (2000)
The construction of a variation of constants formula for the difference equation with advanced arguments y(n+1)=A(n)y(n)+B(n)y(g(n))+f(n), g(n)≥n+1, is given for specific sequential spaces.
Externí odkaz:
https://doaj.org/article/87257766d7e84c7eb989dd6dcd853c35
Autor:
Raúl Naulin
Publikováno v:
Le Matematiche, Vol 54, Iss 1, Pp 123-138 (1999)
In this paper by using the notion of discrete dichotomies, an asymptotic representation of Φ, the fundamental matrix of the linear difference equation y(n + 1) = (A(n) + B(n))y(n) is given.
Externí odkaz:
https://doaj.org/article/8fe80da31feb4ff095e94d3c1c8989dc
Autor:
Raúl Naulin
Publikováno v:
Czechoslovak Mathematical Journal. 53:497-514
The unstable properties of the linear nonautonomous delay system x′(t) = A(t)x(t) + B(t)x(t − r(t)), with nonconstant delay r(t), are studied. It is assumed that the linear system y′(t) = (A(t) + B(t))y(t) is unstable, the instability being cha
Autor:
Raúl Naulin
Publikováno v:
Journal of Mathematical Analysis and Applications. 274(1):305-318
The unstable properties of the null solution of the nonautonomous delay system x′(t)=A(t)x(t)+B(t)x(t−r1(t))+f(t,x(t),x(t−r2(t))) are examined; the nonconstant delays r1, r2 are assumed to be continuous bounded functions. The case A=constant is
Autor:
Raúl Naulin, Manuel Pinto
Publikováno v:
Publicationes Mathematicae Debrecen. 57:315-338
Autor:
Raúl Naulin, Manuel Pinto
Publikováno v:
Tamkang Journal of Mathematics. 31:175-192
This paper, relying on dichotomic properties of the matrix difference system $ W(n+1)=A(n)W(n)A^{-1}(n)$, gives conditions under which a perturbed system $ y(n+1)=(A(n)+B(n))y(n)$, by means of a nonautonomous change of variables $ y(n)=S(n)x(n)$, can
Publikováno v:
Applicable Analysis. 75:241-259
In this paper we study the difference equation with advanced arguments is a sequence of natural numbers such that . Several existence and uniquess theorems for solutions are given. The notion of a generating matrix, together with its asympotic formul
Autor:
Raúl Naulin, Lolimar Díaz
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 24, Iss 8, Pp 549-562 (2000)
The construction of a variation of constants formula for the difference equation with advanced argumentsy(n+1)=A(n)y(n)+B(n)y(g(n))+f(n),g(n)≥n+1, is given for specific sequential spaces.
Autor:
Manuel Pinto, Raúl Naulin
Publikováno v:
Nonlinear Analysis: Theory, Methods & Applications. 31:559-571
Autor:
Raúl Naulin
Publikováno v:
Nonlinear Analysis: Theory, Methods & Applications. 30:1125-1132