PageHeader : Funkcialaj Ekvacioj, 22 (1979) 161-196 Title : Fourier Integral Operators of Multi-Phase and Title : the Fundamental Solution for Title : a Hyperbolic System AuthorInfo : By AuthorInfo : Hitoshi KUMANO-GO and Kazuo TANIGUCHI AuthorInfo : (Osaka Univ. and Univ. of Osaka Prefecture, Japan) section : Introduction. section : 1. Main results on calculus of phase functions section : 2. Fourier integral operators of multi-phase section : 3. Fundamental solution of a hyperbolic system section : References