The Canadian Journal of Statistics / La Revue Canadienne de Statistique, Vol. 2, No. 2 (1974), pp. 249-259 (11 pages) Quintic designs, a class of PBIB designs having five associate classes, are ...
We study a family of quintic polynomials discovered by Emma Lehmer. We show that the roots are fundamental units for the corresponding quintic fields. These fields have large class numbers and several ...
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