Entropy for hyperbolic Riemann surface laminations I
  We develop a notion of entropy, using hyperbolic time, for laminations by hyperbolic Riemann surfaces. When the lamination is compact and transversally smooth, we show that the entropy is finite and the Poincare metric on leaves is transversally Holder continuous. A notion of metric entropy is also introduced for harmonic measures. 
Tien-Cuong Dinh, Viet-Anh Nguyen and Nessim Sibony
math.DS math.CV