Mathematics – Algebraic Geometry
Scientific paper
2006-01-17
Computer mathematics, 248--257, Lecture Notes Ser. Comput., 10, World Sci. Publishing, River Edge, NJ, 2003
Mathematics
Algebraic Geometry
Scientific paper
We introduce a new approach of computing the automorphism group and the field of moduli of points $\p=[C]$ in the moduli space of hyperelliptic curves $\H_g$. Further, we show that for every moduli point $\p \in \H_g(L)$ such that the reduced automorphism group of $\p$ has at least two involutions, there exists a representative $C$ of the isomorphism class $\p$ which is defined over $L$.
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