Agemi, Rentaro; Kubota, Koji; Yoshikawa, Atsushi Dedication to Professor Taira Shirota’s sixtieth anniversary. (English) Zbl 0517.01039 Hokkaido Math. J. 12, 259-263 (1983). MSC: 01A70 PDFBibTeX XMLCite \textit{R. Agemi} et al., Hokkaido Math. J. 12, 259--263 (1983; Zbl 0517.01039)
Yoshikawa, Atsushi A parametrix for a completely regularly hyperbolic operator. (English) Zbl 0516.35046 Hokkaido Math. J. 10, Special Issue, 723-742 (1981). MSC: 35L15 35A08 35S05 PDFBibTeX XMLCite \textit{A. Yoshikawa}, Hokkaido Math. J. 10, 723--742 (1981; Zbl 0516.35046)
Yoshikawa, Atsushi Construction of a parametrix for the Cauchy problem for some weakly hyperbolic equations. II. (English) Zbl 0423.35063 Hokkaido Math. J. 7, 1-26 (1978). MSC: 35L99 35S99 PDFBibTeX XMLCite \textit{A. Yoshikawa}, Hokkaido Math. J. 7, 1--26 (1978; Zbl 0423.35063) Full Text: DOI
Yoshikawa, Atsushi Construction of a parametrix for the Cauchy problem of some weakly hyperbolic equation. III. (English) Zbl 0393.35040 Hokkaido Math. J. 7, 127-141 (1978). MSC: 35L15 35G10 35L80 PDFBibTeX XMLCite \textit{A. Yoshikawa}, Hokkaido Math. J. 7, 127--141 (1978; Zbl 0393.35040) Full Text: DOI
Yoshikawa, Atsushi Construction of a parametrix for the Cauchy problem of some weakly hyperbolic equation. I. (English) Zbl 0381.35054 Hokkaido Math. J. 6, 313-344 (1977). MSC: 35L15 35S10 35E05 PDFBibTeX XMLCite \textit{A. Yoshikawa}, Hokkaido Math. J. 6, 313--344 (1977; Zbl 0381.35054) Full Text: DOI
Yoshikawa, Atsushi On Maslov’s canonical operator. (English) Zbl 0333.58010 Hokkaido Math. J. 4, 8-38 (1975). MSC: 58J40 35S99 47Gxx PDFBibTeX XMLCite \textit{A. Yoshikawa}, Hokkaido Math. J. 4, 8--38 (1975; Zbl 0333.58010) Full Text: DOI