Published: 1971 Received: October 06, 1969Available on J-STAGE: September 29, 2006Accepted: -
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Date of correction: September 29, 2006Reason for correction: -Correction: CITATIONDetails: Right : [1] S. Ishihara and M. Obata, Affine transformations in a Riemannian manifold, Tôhoku Math. J., 7 (1955), 146-150. [2] S. Ishihara and Y. Tashiro, On Riemannian manifolds admitting a concircular transformation, Math. J. Okayama Univ., 9 (1959), 19-47. [3] S. Kobayashi, A theorem on the affine transformation group of a Riemannian manifold, Nagoya Math. J., 9 (1955), 39-41. [4] S. B. Myers, Riemannian manifolds with positive mean curvature, Duke Math. J., 8 (1941), 401-404. [5] T. Nagano, The conformal transformation on a space with parallel Ricci tensor, J. Math. Soc. Japan, 11 (1959), 10-14. [6] N. Tanaka, Conformal connections and conformal transformations, Trans. Amer. Math. Soc., 92 (1959), 168-190. [7] Y. Tashiro, Remarks on a theorem concerning conformal transformations, Proc. Japan Acad., 35 (1959), 421-422. [8] Y. Tashiro, Complete Riemannian manifolds and some vector fields, Trans. Amer. Math. Soc., 117 (1965), 251-275. [9] Y. Tashiro, Conformal transformations in complete Riemannian manifolds, Publ. of the Study Group of Geometry of Japan, 3 (1967). [10] Y. Tashiro and K. Miyashita, Conformal transformations in complete product Riemannian manifolds, J. Math. Soc. Japan, 19 (1967), 328-346. [11] K. Yano and T. Nagano, Einstein spaces admitting a one-parameter group of conformal transformations, Ann. of Math., 69 (1959), 451-461. [12] K. Yano and T. Nagano, The de Rham decomposition, isometries and affine transformations in Riemannian space, Japan. J. Math., 29 (1959), 173-184.
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