2 problems

Let $p>5$ be an odd prime, let $C_{NQ}\subset {\mathbb F}^{2p}$ be the quasi-quadratic residue code, and let $C'$ be the code spanned by $C_{NQ}$ and the all-ones codeword. Let…

Let $p>5$ be an odd prime, let $Q,N\subset GF(p)^\times$ be the quadratic residues and non-residues, and let $C_{NQ}$ be the quasi-quadratic residue code … where…