3 problems

Let $\code{C}^\ast$ be a formally self-dual code of length $n$. Let $f_{\code{C}}(t)$ be the polynomial associated with a formally self-dual code $\code{C}$, and let…

Let $\Gamma$ be a formally unimodular packing, and let $\Xi_{\Gamma}(\tau)$ denote its secrecy function and $\xi_{\Gamma}$ its maximum value. Formally unimodular packing secrecy fu…

Let $\Lambda$ be a formally unimodular lattice, and let $\Xi_{\Lambda}(\tau)$ denote its secrecy function and $\xi_{\Lambda}$ its maximum value. Belfiore–Solé secrecy function conj…