Schwinger-Fronsdal theory of abelian tensor gauge fields.
Sets of removable singularities of an equation
Sharp regularity theory for second order hyperbolic equations of Neumann type
This note provides sharp regularity results for general, time-independent, second order, hyperbolic equations with non-homogeneous data of Neumann type.
Single input controllability of a simplified fluid-structure interaction model
In this paper we study a controllability problem for a simplified one dimensional model for the motion of a rigid body in a viscous fluid. The control variable is the velocity of the fluid at one end. One of the novelties brought in with respect to the existing literature consists in the fact that we use a single scalar control. Moreover, we introduce a new methodology, which can be used for other nonlinear parabolic systems, independently of the techniques previously used for the linearized problem....
Small time periodic solutions of fully nonlinear telegraph equations in more spatial dimensions
Sur les équations hyperboliques avec des coefficients qui ne dépendent que du temps
Sur un exemple d'équation linéaire hyperbolique n'ayant pas de solution