Hatori, Osamu; Watanabe, Keiichi Isometries between groups of invertible elements in \(C^\ast\)-algebras. (English) Zbl 1260.46036 Stud. Math. 209, No. 2, 103-106 (2012). MSC: 46L05 PDFBibTeX XMLCite \textit{O. Hatori} and \textit{K. Watanabe}, Stud. Math. 209, No. 2, 103--106 (2012; Zbl 1260.46036) Full Text: DOI arXiv
Takahasi, Sin-Ei; Hatori, Osamu; Watanabe, Keiichi; Miura, Takeshi A note on a class of Banach algebra-valued polynomials. (English) Zbl 1024.46013 Int. J. Math. Math. Sci. 32, No. 3, 189-192 (2002). Reviewer: Hans-Andreas Braunß (Potsdam) MSC: 46G25 46H20 47H60 PDFBibTeX XMLCite \textit{S.-E. Takahasi} et al., Int. J. Math. Math. Sci. 32, No. 3, 189--192 (2002; Zbl 1024.46013) Full Text: DOI EuDML
[Takahasi, Sin-ei; Izuchi, Keiji; Saito, Kichi-Suke; Enomoto, Masatoshi; Hatori, Osamu; Nakazato, Hiroshi; Choda, Marie; Saitô, Kazuyuki; Hiai, Fumio; Nakamura, Yoshihiro; Watanabe, Keiichi; Homma, Katsumi] On analyticity in operator algebras. Proceedings of a symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto (Japan), August 24-27, 1988. (Japanese, English) Zbl 0718.46022 RIMS Kokyuroku, 674. Kyoto: Kyoto University, Research Institute for Mathematical Sciences. ii, 159 p. (1988). MSC: 46Lxx 46-06 00B25 46H25 47D09 46J20 PDFBibTeX XMLCite On analyticity in operator algebras. Proceedings of a symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto (Japan), August 24-27, 1988 (Japanese). Kyoto: Kyoto University, Research Institute for Mathematical Sciences (1988; Zbl 0718.46022)