[MathsOX]

Could you provide a link to this paper?

[sanxiyn]

Sure. May 2015 paper is http://arxiv.org/abs/1505.06284, as easily found by reading the paper. (It is reference 13.)

As for "but this somehow completely failed to make waves in the community", I think "but life is too short to give my full attention to a dubious paper for more than 15 minutes" is an enough explanation.

[yk]

I think he means this one: http://arxiv.org/abs/1505.06284