We consider the problem of classifying all positive-definite integer-valued quadratic forms that represent all positive odd integers. Kaplansky considered this problem for ternary forms, giving a list ...
Transactions of the American Mathematical Society, Vol. 352, No. 10 (Oct., 2000), pp. 4843-4875 (33 pages) Let D be a complete discrete valuation domain with the unique maximal ideal p. We suppose ...