Exponentially Larger Deletion-Correcting Codes and Constant-List-Decodable Insertion-Deletion Codes
We establish improved asymptotic rate bounds for adversarial insertion--deletion codes. For binary unique-deletion correction in the linear-deletion regime, we strictly improve Levenshtein's classical lower-bound expression. At deletion fraction $\delta=0.1$, our achievable rate increases from $0.162009$ to $0.194890$,...