Mario Wschebor, Professor at the Universidad de la República (Montevideo, Uruguay), passed away on the 16th of September 2011. After graduation in Uruguay, Wschebor moved to France to pursue his education in analysis and probability. In 1972, he defended a Ph. D. thesis at the University of Paris-Sud (Orsay) supervised by Jean Pierre Kahane. Persecuted for his beliefs during the dictatorship period 1973-1985 in Uruguay, he went to exile first in Argentina and then, once more for political reasons, in Venezuela.
Wschebor has been one of the most fundamental forces in establishing a Faculty of Sciences at Universidad de la República, and later on, in setting up a solid research structure in his country with international connections. He has been instrumental in the creation of UMALCA, and its first President for two terms. He has also been President of CIMPA.
His research centered around stochastic processes, with very significant and beautiful contributions to problems like distribution of the maximum, level sets, regularity of sample paths and local time. His book, co-authored with Jean-Marc Azaïs, “Level Sets and Extrema of Random Processes and Fields”, published in 2009, is becoming referential. More recently, he was interested in complexity, inspired by problems posed by Smale.