参考文献

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Eiichi Abe, Hopf algebras, Cambridge Univ. press, 1980.

2

M. Artin, Geometry of quantum planes, Contermporary Math. 124 (1992), 1-15.

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N. Jacobson, Basic algebra ii, W. H. Freeman and company, 1980.

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S. S. Mac Lane, Categories for the working mathematicians, Springer Verlag, 1971.

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Yuri I. Manin, Quantized theta-functions, Progress of theoretical physics supplement 102 (1990), 219-228.

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to3em, Topics in non commutative geometry, Princeton University Press, 1991.

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A. L. Rosenberg, Noncommutative schemes, Compositio Math. 112, no. 1 (1998), 93-125.

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Y. Tsuchimoto, Constructions on non commutative schemes, Mem. Math. Kochi Univ. (1998), 95-95.

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大森英樹, 一般力学系と場の幾何学, 裳華房, 1991.

Kochi University

Department of Mathematics

Faculty of Science

Kochi, 780 Japan

E-mail: docky@math.kochi-u.ac.jp