訂正日: 2006/08/29訂正理由: -訂正箇所: 引用文献情報訂正内容: Right : [1] W. L. Baily, The decomposition theorem for V-manifolds, Amer. J. Math., 78 (1956), 862-888. [2] A. Borel and F. Hirzebruch, Characteristic classes and homogeneous spaces II, Amer. J. Math., 81 (1959), 315-382. [3] F. Hirzebruch, Neue topologische Methoden in der algebraischen Geometrie, Ergebnisse der Mathematik, 1956. [4] I. Satake, The Gauss-Bonnet Theorem for V-manifolds, J. Math. Soc. Japan, 9 (1957), 464-492. [5] N. Steenrod, The topology of fibre bundles, Princeton, 1951. [6] I. Tamura, A diffeomorphy invariant of quotient manifolds, J. Math. Soc. Japan, 11 (1959), 343-353. [7] I. Tamura, Characteristic classes of 2-fold symmetric products of spheres (to appear in J. Math. Soc. Japan).