Well-posedness in Gevrey classes of the Cauchy problems for some second order weakly hyperbolic operators

MR0816826 Uryu, Hitoshi and Itoh, Shigeharu Hitoshi URYU and Shigeharu ITOH Well-posedness in Gevrey classes of the Cauchy problems for some second order weakly hyperbolic operators Funkcialaj Ekvacioj. Serio Internacia 28 1985 193--211 http://fe.math.kobe-u.ac.jp/FE/Free/vol28/fe28-2-4.pdf http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE21-30-en_KML/fe28-193-211/fe28-193-211.pdf http://www.ams.org/mathscinet-getitem?mr=MR0816826 fe28-193-211 1985 Well-posedness in Gevrey Classes of the Cauchy Problems for Some Second Order Weakly Hyperbolic Operators URYU, Hitoshi; ITOH, Shigeharu URYU, Hitoshi; ITOH, Shigeharu

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