4 papers
On the isotropy stratification of a real representation of a compact Lie group
Perla Azzi, Rodrigue Desmorat, Julien Grivaux +1
The aim of the present paper is to provide a comprehensive introduction to some algebraic and geometric aspects of real representations of compact Lie groups, as well as some resul…
Self-adjoint extensions of singular Sturm-Liouville operators on graphs and Weyl's law
Elisha Falbel
We study self-adjoint extensions of a second order differential operator of Sturm-Liouville type on a graph. We relate self-adjointness of the operator to the existence of non-comp…
Weak solutions of a viscous model for fluid-bubbles interaction
Cosmin Burtea, David Gérard-Varet
We present a system of Navier-Stokes type that describes the dynamics of several spherical bubbles of gas in a liquid. It is derived from a more complete model, where the bubbles a…
Almost reducibility, distortion and local perfection for diffeomorphisms of one-manifolds
Hélène Eynard-Bontemps, Emmanuel Militon
In this article, we characterize the distortion elements of the group of smooth diffeomorphisms of the circle and of the group of compactly supported smooth diffeomorphisms of the…