The Mobius disjointness conjecture for distal flows
  We summarize main results in our paper "The Mobius function and distal flows", and give a direct proof with rate of that the Mobius function is disjoint from Furstenberg's irregular system. This will be published in the Proceedings of the Sixth ICCM, held in Taipei in 2013. 
Jianya Liu and Peter Sarnak
math.NT