Suppose that Ω is a bounded convex domain in R whose boundary is a C manifold with corners. We prove that the boundary values (Cauchy data) of eigenfunctions of the Laplacian on Ω with various boundary conditions are quantum ergodic if the classical billiard map β on the ball bundle B(∂Ω) is ergodic. Our proof is based on the classical observation that the boundary values of an interior eigenfu...

Patricia Vendramin is a project manager at the Work & Technology Research Unit of the Fondation Travail-Universite in Namur. She has a background in sociology (1981) and communication sciences (1983); she also completed a master degree in development studies (1983), both at the University of Louvain-la-Neuve, where she started doing research in 1983. She is a researcher at the FTU since 1988 an...

Pendant le mois d’avril 1871, au cours duquel général Cluseret, délégué à la guerre de Commune, travaille création d’une force armée organisée, il reçoit l’assistance, pour l’enrôlement bataillons marche et d’artillerie, figure républicaine connue bohème littéraire du Second Empire, Melvil-B...

11 Chong, C., and G. Fedde, "Magnetic films: Revolution in computer memories," Proceedings Fall Joint Computer Conference, 1962. 12 Pohm, A. V., R. J. Zingg, T. A. Smay, G. A. Watson, and R. M. Stewart, "Large, high speed, DRO film memories," Proceedings of the International Conference on Nonlinear Magnetics, 1963. 13 James, J. B., B. J. Steptoe, and A. A. Kaposi, "The design of a 4,096 word on...

Human identifi cation leads to mutual trust that is essential for the proper functioning of society. We have been identifying fellow humans based on their voice, appearance, or gait for thousands of years. However, a systematic and scientifi c basis for human identifi cation started in the nineteenth century when Alphonse Bertillon (Rhodes and Henry 1956 ) introduced the use of a number of anth...