PageHeader : Funkcialaj Ekvacioj, 33 (1990) 139-150 Title : Parabolic Evolution Equations in Which the Coefficients Are Title : the Generators of Infinitely Differentiate Semigroups, II AuthorInfo : By AuthorInfo : Atsushi YAGI AuthorInfo : (Himeji Institute of Technology, Japan) section : 1. Introduction section : 2. Fractional powers of operators section : 3. Main theorems section : 4. Application section : References