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›› 2007, Vol. 24 ›› Issue (6): 725-728.DOI: 10.7523/j.issn.2095-6134.2007.6.001

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Fields of definition of a family of curves

ZHOU Yun   

  1. Graduate University of Chinese Academy of Sciences
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-15

Abstract: Let K be a finitely generated field extension of an algebraically closed
field k and C : f(x) = ayn be a curve over K, where char(k) - n, f(x) 2 k[x].
When n > 4, a 62 Kn and f has at least three simple zeros, the curve C is not defined over k.

Key words: Algebraic curves, Genus, Automorphisms

CLC Number: