Dear All, Friday the 24th of March, Ian Melbourne (Warwick), will give a talk at USyd, Carslaw Lecture Theatre 375 at 4pm on Title: The Lorenz attractor mixes exponentially quickly Abstract: The classical Lorenz equations (Lorenz 1963) popularised the notion of chaos, often referred to as the "butterfly effect". A full mathematical understanding of these equations has taken a few decades. In general, proving mixing properties (loss of memory) for dynamical systems is a difficult and poorly understood question. In this talk, we show that the classical Lorenz attractor mixes exponentially quickly. This is joint work with Vitor Araujo and Paulo Varandas. Hope to see you all there, Georg