Electronic Journal of Differential Equations,
Vol. 2005(2005), No. 73, pp. 1-17.

Title: Existence results for a second-order abstract Cauchy problem
       with nonlocal conditions
       
Authors: Eduardo Hernandez M. (Univ. de Sao Paulo, Brazil)
         Mauricio L. Pelicer  (Univ. de Sao Paulo, Brazil)

Abstract: 
 In this paper we study the existence of mild and classical solutions
 for a  second-order abstract Cauchy problem with nonlocal
 conditions.
  
Submitted January 25, 2005. Published July 5, 2005.
Math Subject Classifications: 47D09, 47N20, 34G10.
Key Words: Abstract Cauchy problem; Cosine functions of operators