Recent trends in nonlinear partial differential equations II : workshop in honor of Patrizia Pucci's 60th birthday : nonlinear partial differential equations, May 28-June 1, 2012, University of Perugia, Perugia, Italy - Serrin, J. (James), 1926-2012; Mitidieri, Enzo; Radulescu, Vicentiu D., 1958- (Contemporary mathematics (American Mathematical Society), 2013)