A criterion for a prime to be a common index divisor of a dihedral field of prime degree is given. This criterion is used to determine the index of families of dihedral fields of degrees 5 and 7.

Additional Metadata
Persistent URL dx.doi.org/10.1155/2007/89713
Journal International Journal of Mathematics and Mathematical Sciences
Citation
Spearman, B.K. (Blair K.), Williams, K.S, & Yang, Q. (Qiduan). (2007). On the common index divisors of a dihedral field of prime degree. International Journal of Mathematics and Mathematical Sciences, 2007. doi:10.1155/2007/89713