Costas Efthimiou
Joseph L. Taylor
Winter School on Complex Analysis and Operator theory (3rd 2010 Universidad Politécnica de Valencia)
Wilhelm Schlag
Alexei Poltoratski
Dror Varolin
Peter D. Lax
Irina Voiculescu
Raymond Cheng
Lucian Bădescu
Alberto Guzman
International Symposium on Orthogonal Polynomials, Special Functions and Applications (11th 2011 Universidad Carlos III de Madrid)
Pei-Chu Hu
Anthony Tromba
Barry Simon
N. Ghoussoub
Mark L. Agranovsky
Dana Schlomiuk
Ulrich Dierkes
Andrei Bogatyrev