[1]Helffer B, Zuily C. Non-hypoellipticite des op´erateurs du type de fuchs’. C R Acad Sci paris A, 1973,277:1061-1064
[2]Treves F. Second-order fuchsian elliptic equations and eigevaule asymptotics’. In: Lecture Notes in Math,459. Berlin:Springer,1975,283-340
[3]Bolly P, Camus J, Helffer B. Hypoellipticite partielle pour des op´erateurs d´eg´eh´er´es non-Fuchsians. Comm partial Differential Equations, 1977,2:1-30
[4]Bolly P, Camus J, Helffer B. Sur une class d’op´erateurs partiellement hypoelliptiques’. J Math Pures Appl,1976,55:131-171
[5]Qiu Qingjiu. On the partially hypoellipticity for a class of first order Fuchsian evolution operator. Acta Math Sci, 1983,3:7-19
[6]Hanges N. Parametrices and local solvablity for a class of singular hyperbolic operators. Comm PDE,1978,3:105-152
[7]Lewis J E, Prenti C. Parametris for aclass of totally characteristic operators. J DE, 1983,50:305-317
[8]Chen Hua. On the partially microlocal hypoellipticity for a class of totally characteristic operators with characteristics of constant multiplicity. Acta Math Sinica(to appear)
[9]Chen Hua. Microlocally tangential hypoellipticity for a class of totally characteristic K-evolution operators.J London Math Soc, 1991,43(2):283-294
[10]Chen Hua. Gevrey-hypoelliplicity for a class of parabolic type operators. J PDE,1990,3(2):63-76
[11]Chen Hua. On the complete partition of the totally characteristic in Gevrey-class. J of Wuhan Univ,1988,1:9-18
[12]Mizohata S. Some remarks on the Cauchy problem. J Math Kyoto Univ, 1961,1:109-127
[13]Mizohata S. On the Cauchy problem. Beijing: Science press, 1985
[14]Mizohata S. On the Cauchy problem for hyperbolic equations and related problems -microlocal energy methods.Taniguchi symposium Hert Katata, 1984.193-233
[15]Melrose R B, Mendoza G. Elliptic operators of totally characteristic type. MIT preprint, 1986
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