A central limit theorem for a new statistic on permutations
  This paper does three things: It proves a central limit theorem for novel permutation statistics (for example, the number of descents plus the number of descents in the inverse). It provides a clear illustration of a new approach to proving central limit theorems more generally. It gives us an opportunity to acknowledge the work of our teacher and friend B. V. Rao. 
Sourav Chatterjee, Persi Diaconis
math.PR