Chinese Quarterly Journal of Mathematics ›› 1997, Vol. 12 ›› Issue (3): 20-23.

Previous Articles     Next Articles

On the Favard Class of Cosine Operator Function

  

  1. Department  of Mathematics,Xinyang  Teacher's  College,Xinyang,464000
  • Received:1995-05-26 Online:1997-09-30 Published:2024-11-21
  • Supported by:
    Supported by the Natural Science Foundation of Henan Province and the Natural Science Foundation of Henan Province Education      Committee.

Abstract: In this paper we give some basic properties of the Favard class of cosine operator function, and concern with the question when for a given cosine fuction we have Fav(A) = D(A). 

Key words:  , Favard class, cosine operator fuction, θ-reflexivity ,

CLC Number: