Title of article :
On the Spectrum of Cosine Functions
Author/Authors :
Elena Sch¨uler، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 1999
Abstract :
this paper we give characterizations of the resolvent set of the generator A of
a strongly continuous cosine function C t. in terms of certain solution properties
of the differential equation u0 t.sAu t.qf t..
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications
