%0 Journal Article %T The Zero-Undetected-Error Capacity Approaches the Sperner Capacity %A Christoph Bunte %A Amos Lapidoth %A Alex Samorodnitsky %J Computer Science %D 2013 %I arXiv %R 10.1109/TIT.2014.2322624 %X Ahlswede, Cai, and Zhang proved that, in the noise-free limit, the zero-undetected-error capacity is lower bounded by the Sperner capacity of the channel graph, and they conjectured equality. Here we derive an upper bound that proves the conjecture. %U http://arxiv.org/abs/1309.4930v2