Ancora sulle diseguaglianze di Wirtinger concernenti la derivata seconda
Approximation of eigenvalues of differential equations with non-smooth coefficients
Approximation von Eigenwertproblemen bei nichtlinearer Parameterabhängigkeit.
Asymptotic behaviour of the solutions of equations with impulse effect in a Banach space.
Asymptotics of the number of zeros and of the eigenvalues of general weighted Sturm-Liouville problems.
Asymptotique semi-classique pour la densité spectrale locale d'opérateurs de Schrödinger (d'après D. Robert et H. Tamura)