We derive optimal order a posteriori error bounds for a fully discrete Crank-Nicolson finite element scheme for linear Schroedinger equations. The derivation of the estimators is based on the reconstr...
Lower curvature bounds play an important role in the study of singular spaces. In 2005 Lott, Sturm and Villani presented a synthetic definition in terms of Optimal Transportation of a metric space end...
In this talk we address the solution of quasilinear elliptic problems of monotone type by using the Mimetic Finite Difference (MFD) method. Under a suitable approximation assumption, we prove that the...
I will study a nonlinear heat equation with a periodic timeoscillating term in factor of the nonlinearity. In particular, I will give examples showing how the behavior of the solution can drastically ...
We study a discounted infinite horizon control problem in a stratified setting. We write down an appropriate Hamilton-Jacobi-Bellman equation and prove a comparison principle implying that the value f...
I will first give two (similar) ways for proving the existence of a weak solution for the compressible (stationary) stokes problem : passing to the limit using (in particular) a viscous approximation ...
The classical Faber-Krahn inequality asserts that balls (uniquely) minimize the first eigenvalue of the Dirichlet-Laplacian among sets with given volume. I will show a sharp quantitative enhancement o...
The limit behaviour of variational systems depending on small parameters (e.g. homogenization, phase transitions, etc.) is often successfully described in terms of Gamma-convergence both in the static...
We show that the combined action of similarity and symmetry produces 2D finite differences (2D dynamics) in the limit of 1D finite differences (1D dynamics). This provides a construction of the 2D Lap...
We consider the evolution of an interface generated between two immiscible, incompressible and irrotational fluids. Specifically we study the Muskat equation (the interface between oil and water in sa...
We present short time existence, uniqueness, and regularity results for a surface diffusion evolution equation with curvature regularization in the context of epitaxially strained two-dimensional film...
