← The frontier
Technology & AIJul 23, 2026

Improved lower bounds for the Shannon capacity of odd cycles

The Shannon capacity $Θ(G)$ of a graph $G$ quantifies the maximum rate at which information can be transmitted with zero error over a noisy channel.

The Shannon capacity $Θ(G)$ of a graph $G$ quantifies the maximum rate at which information can be transmitted with zero error over a noisy channel. It is lower bounded by $α(G^d)^{1/d}$ for any $d$, where $α(G^d)$ is the independence number of the $d$-th strong power of $G$. We…

The frontier is open to all. Sign in to learn this from first principles and save it to your knowledge base.