2 problems

Consider the $34$ ternary lattices listed in the theorem immediately preceding the conjecture, over the relevant real quadratic fields. A universal ternary lattice is a ternary qua…

Let $D$ be a positive squarefree integer, let … and let $\mathcal{O}_F$ denote the ring of integers of $F$. A universal ternary $\mathcal{O}_F$-lattice is a universal quadratic lat…