Published: 1982 Received: August 22, 1980Available on J-STAGE: October 20, 2006Accepted: -
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Date of correction: October 20, 2006Reason for correction: -Correction: CITATIONDetails: Wrong : 1) R. L. Bishop and B. O'Neill, Manifolds of negative curvature, Trans. Amer. Math. Soc., 145 (1969), 1-49. 2) P. Eberlein and B. O'Neill, Visibility manifolds, Pacific J. Math., 46 (1973), 45-109. 3) P. Eberlein, When is a geodesic flow of Anosov type? II, J. Differential Geometry, 8 (1973), 565-577. 4) P. Ehrlich and H. C. Im Hof, Metric circles and bisectors, Math. Z., 159 (1978), 101-105. 5) J. H. Eschenburg, Horospheres and the stable part of the geodesic flow, Math. Z., 153 (1977), 237-251. 6) M. S. Goto, Manifolds without focal points, J. Differential Geometry, 13 (1978), 341-359. 7) M. S. Goto, The cone topology on a manifold without focal points, J. Differential Geometry, 14 (1979), 595-598. 8) K. Grove and H. Karcher, How to conjugate C1-close group actions, Math. Z., 132 (1973), 11-20. 9) D. Gromoll, W. Klingenberg and W. Meyer, Riemannsche Geometrie im Croßen, Springer, Berlin, 1968. 10) R. Gulliver, On the variety of manifolds without conjugate points, Trans. Amer. Math. Soc., 210 (1975), 185-201. 11) E. Heintze and H. C. Im Hof, On the geometry of horospheres, J. Differential Geometry, 12 (1977), 481-491. 12) E. Heintze, Mannigfaltigkeiten negativer Krümmung, Habilitationsschrift, University of Bonn, 1976. 13) H. B. Lawson, Jr. and S. T. Yau, Compact manifolds of nonpositive curvature, J. Differential Geometry, 7 (1972), 211-228. 14) J.J. O'Sullivan, Manifolds without conjugate points, Math. Ann., 210 (1974), 295-311. 15) H. C. Im Hof, The family of horospheres through two points, Math. Ann., 240 (1979), 1-11.
Right : [1] R. L. Bishop and B. O'Neill, Manifolds of negative curvature, Trans. Amer. Math. Soc., 145 (1969), 1-49. [2] P. Eberlein and B. O'Neill, Visibility manifolds, Pacific J. Math., 46 (1973), 45-109. [3] P. Eberlein, When is a geodesic flow of Anosov type? II, J. Differential Geometry, 8 (1973), 565-577. [4] P. Ehrlich and H. C. Im Hof, Metric circles and bisectors, Math. Z., 159 (1978), 101-105. [5] J. H. Eschenburg, Horospheres and the stable part of the geodesic flow, Math. Z., 153 (1977), 237-251. [6] M. S. Goto, Manifolds without focal points, J. Differential Geometry, 13 (1978), 341-359. [7] M. S. Goto, The cone topology on a manifold without focal points, J. Differential Geometry, 14 (1979), 595-598. [8] K. Grove and H. Karcher, How to conjugate C1-close group actions, Math. Z., 132 (1973), 11-20. [9] D. Gromoll, W. Klingenberg and W. Meyer, Riemannsche Geometrie im Croßen, Springer, Berlin, 1968. [10] R. Gulliver, On the variety of manifolds without conjugate points, Trans. Amer. Math. Soc., 210 (1975), 185-201. [11] E. Heintze and H. C. Im Hof, On the geometry of horospheres, J. Differential Geometry, 12 (1977), 481-491. [12] E. Heintze, Mannigfaltigkeiten negativer Krümmung, Habilitationsschrift, University of Bonn, 1976. [13] H. B. Lawson, Jr. and S. T. Yau, Compact manifolds of nonpositive curvature, J. Differential Geometry, 7 (1972), 211-228. [14] J. J. O'Sullivan, Manifolds without conjugate points, Math. Ann., 210 (1974), 295-311. [15] H. C. Im Hof, The family of horospheres through two points, Math. Ann., 240 (1979), 1-11.
Date of correction: October 20, 2006Reason for correction: -Correction: PDF FILEDetails: -