Approximation theorem for evolution operators
Tom 154 / 2003
Studia Mathematica 154 (2003), 195-206
MSC: Primary 47D06.
DOI: 10.4064/sm154-3-1
Streszczenie
This paper is devoted to the study of the approximation problem for the abstract hyperbolic differential equation for t\in [0,T], where \{ A(t):t\in [0,T]\} is a family of closed linear operators, without assuming the density of their domains.