My research interests in algebraic geometry
  
  
    -  Projective surfaces: for example I have shown that the automorphism
      group of a complex minimal surface of general type has its order
      upper-bounded by (42K)2, when I was at age of 42. (Should one
      expect a similar thing to hold for varieties of higher dimensions?)
    
   Publications (articles with a `*' have available reprints.
  
    -  Surfaces Fibrées en Courbes de Genre Deux, Lecture Notes
      in Math. 1137, 1985
- Finitude de l'application bicanonique des surfaces de type
      général, Bull. Soc. Math. France 113/1, 23-51 (1985)
-  L'irrégularité des surfaces de type général
      dont le système canonique est composé d'un pinceau,
      Compositio Math. 56, 251-257 (1985)
-  Algebraic surfaces with high canonical degree, Math.
      Annalen 274, 473-483 (1986)
- An example of hyperelliptic surfaces with positive index,
      DongBei ShuXue 2 (3), 255-257 (1986)
-  Fibered algebraic surfaces with low slope, Math. Annalen
      276, 449-466 (1987)
-  Irregularity of surfaces with a linear pencil, Duke
      Mathematical Journal 55/3, 597-602 (1987)
-  Hyperelliptic surfaces of general type with K^2 < 4\ki, Manuscripta Math. 57, 125-148 (1987)
-  Degree of the bicanonical map of a surface of general
        type, American J. Math. 112, 713-736 (1990) *
-  On the stable reduction of pencils of curves, Math. Z. 203, 379-389
      (1990) *
-  On abelian automorphism group of a surface of general type,
      Invent. Math. 102, 619-631 (1990) *
-  \pi_1 of elliptic and hyperelliptic surfaces, International J. Math.
      2/5, 599-615 (1991) *
-  Fibrations of Algebraic Surfaces, Shanghai Scientific and Technical
      Publishers 1991 (in Chinese)
-  Irregular families of hyperelliptic curves, in Algebraic Geometry and
      Algebraic Number Theory, ed. Feng Ke-Qin / Li Ke-Zheng, World Scientific
      1992, pp. 152-156
-  Bound of automorphisms of surfaces of general type I, Annals of
      Math. 139, 51-77 (1994) *
-  Bound of automorphisms of surfaces of general type II, J. Algebraic
      Geometry 4, 701-793 (1995) *
-  Geography of spin surfaces (with Ulf Persson and Chris Peters),
      Topology 35/4, 845-862 (1996) *
-  Galois covers between K3 surfaces, Ann. Inst. Fourier 46/1, 73-88
      (1996) *
-  Linear bound for abelian automorphisms of varieties of general type,
      J. reine angew. Math. 476, 201-207 (1996) *
  
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