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 : 1) W. Barth, Abelian surfaces with (1, 2)-polarization, Adv. Studies in Pure Math., 10 (1987), 41-84. 2) J. W. S. Cassels, An Introduction to the Geometry of Numbers, Grundlehren Math. Wiss., 99, Springer-Verlag, 1971. 3) T. Hayashida and M. Nishi, Existence of curves of genus two on a product of two elliptic curves, J. Math. Soc. Japan, 17 (1965), 1-16. 4) T. T. Moh and W. Heinzer, On the Lüroth semigroups and Weierstrass canonical divisors, J. Algebra, 77 (1982), 62-73. 5) H. Tokunaga and H. Yoshihara, Degree of irrationality of abelian surfaces, J. Algebra, 174 (1995), 1111-1121. 6) A. Weil, Variété abéliennes et courbes algébriques, Hermann 1971. 7) H. Yoshihara, Degree of irrationality of an algebraic surface, J. Algebra, 167 (1994), 634-640. 8) H. Yoshihara, Degree of irrationality of a product of two elliptic curves, Proc. Amer. Math. Soc. 124 (1996), 1371-1375.
Right : [1] W. Barth, Abelian surfaces with (1,2)-polarization, Adv. Studies in Pure Math., 10 (1987), 41-84. [2] J. W. S. Cassels, An Introduction to the Geometry of Numbers, Grundlehren Math. Wiss., 99, Springer-Verlag, 1971. [3] T. Hayashida and M. Nishi, Existence of curves of genus two on a product of two elliptic curves, J. Math. Soc. Japan, 17 (1965), 1-16. [4] T. T. Moh and W. Heinzer, On the Lüroth semigroups and Weierstrass canonical divisors, J. Algebra, 77 (1982), 62-73. [5] H. Tokunaga and H. Yoshihara, Degree of irrationality of abelian surfaces, J. Algebra, 174 (1995), 1111-1121. [6] A. Weil, Variété abéliennes et courbes algébriques, Hermann 1971. [7] H. Yoshihara, Degree of irrationality of an algebraic surface, J. Algebra, 167 (1994), 634-640. [8] H. Yoshihara, Degree of irrationality of a product of two elliptic curves, Proc. Amer. Math. Soc. 124 (1996), 1371-1375.