A Generalized Half-Singleton Bound for List Decoding of Insertion/Deletion Errors

We derive an upper bound on the rate of a linear code capable of list decoding from insertion and deletion errors. Subsequently, we show that a linear code can list decode from at most $n - \frac{L}{L+1}k + 1$ insdel errors with fixed list size $L$, and that this bound is strict when the code does n