Today, Korean media is reporting that a team of South Korean researchers solved Yang-Mill existence and mass gap problem. Did anyone outside Korea even notice this? I was not able to notice anything in US media.
The paper is
Is this just an ordinary "good" paper that is nothing close to solving Yang-Mills existence and mass gap problem? Or is it purported solution?
Note that the arxiv preprint is 2012's but the news of publication in Physical Review D is April, 2013.