訂正日: 2006/10/20訂正理由: -訂正箇所: 論文サブタイトル訂正内容: Wrong : Dedicated to Professor M. Nagata on his 60th birthday
訂正日: 2006/10/20訂正理由: -訂正箇所: 引用文献情報訂正内容: Wrong : [F1] T. Fujita, On the topology of non-complete algebraic surfaces, J. Fac. Sci. Univ. Tokyo, Sect. IA., 29 (1982), 503-566. [F2] T. Fujita, Fractionally logarithmic canonical rings of algebraic surfaces, J. Fac. Sci. Univ. Tokyo, Sect. IA., 30 (1984), 685-695. [GM] R. V. Gurjar and M. Miyanishi, Affine surfaces with κ_??_1, preprint. [H1] R. Hartshorne, Ample subvarieties of algebraic varieties, Lecture Notes Math., 156, Springer, 1970. [H2] R. Hartshorne, Algebraic Geometry, Graduate Texts Math., 57, Springer, 1977. [L] H. Lange, On stable and ample vector bundles of rank 2 on curves, Math. Ann., 238 (1978), 193-202. [LN] H. Lange and M. S. Narasimhan, Maximal subbundles of rank two vector bundles on curves, Math. Ann., 266 (1983), 55-72. [M] M. Maruyama, On classification of ruled surfaces, Lectures in Math., Kyoto Univ., 3, Kinokuniya, Tokyo, 1970. [MS] S. Mukai and F. Sakai, Maximal subbundles of vector bundles on a curve, Manuscripta Math., 52 (1985), 251-256. [N] M. Nagata, On self-intersection number of a section on a ruled surface, Nagoya Math. J., 37 (1970), 191-196. [S1] F. Sakai, Anti-Kodaira dimension of ruled surfaces, Sci. Rep. Saitama Univ., Ser. A., 10 (1982), 1-7. [S2] F. Sakai, Weil divisors on normal surfaces, Duke Math. J., 51(1984), 877-877. [S3] F. Sakai, The structure of normal surfaces, kuke Math. J., 52 (1985), 627-648. [S4] F. Sakai, Ample Cartier divisors on normal surfaces, J. Reine Angew. Math., 366 (1986), 121-128.
Right : [F1] T. Fujita, On the topology of non-complete algebraic surfaces, J. Fac. Sci. Univ. Tokyo, Sect. IA., 29 (1982), 503-566. [F2] T. Fujita, Fractionally logarithmic canonical rings of algebraic surfaces, J. Fac. Sci. Univ. Tokyo, Sect. IA., 30 (1984), 685-695. [GM] R. V. Gurjar and M. Miyanishi, Affine surfaces with κ≤1, preprint. [H1] R. Hartshorne, Ample subvarieties of algebraic varieties, Lecture Notes Math., 156, Springer, 1970. [H2] R. Hartshorne, Algebraic Geometry, Graduate Texts Math., 57, Springer, 1977. [L] H. Lange, On stable and ample vector bundles of rank 2 on curves, Math. Ann., 238 (1978), 193-202. [LN] H. Lange and M. S. Narasimhan, Maximal subbundles of rank two vector bundles on curves, Math. Ann., 266 (1983), 55-72. [M] M. Maruyama, On classification of ruled surfaces, Lectures in Math., Kyoto Univ., 3, Kinokuniya, Tokyo, 1970. [MS] S. Mukai and F. Sakai, Maximal subbundles of vector bundles on a curve, Manuscripta Math., 52 (1985), 251-256. [N] M. Nagata, On self-intersection number of a section on a ruled surface, Nagoya Math. J., 37 (1970), 191-196. [S1] F. Sakai, Anti-Kodaira dimension of ruled surfaces, Sci. Rep. Saitama Univ., Ser. A., 10 (1982), 1-7. [S2] F. Sakai, Weil divisors on normal surfaces, Duke Math. J., 51(1984), 877-877. [S3] F. Sakai, The structure of normal surfaces, Duke Math. J., 52 (1985), 627-648. [S4] F. Sakai, Ample Cartier divisors on normal surfaces, J. Reine Angew. Math., 366 (1986), 121-128.