Albert Cohen

collaborators

2 papers

math.NA2026

Sampling and reconstruction of convex functions

Andrea Bonito, Albert Cohen, Wolfgang Dahmen +3

We discuss optimal recovery for classes of multivariate convex functions from given point samples, as well as the sampling numbers of these classes, corresponding to optimal sample…

math.AP2024

Constructions of bounded solutions of $d i v u = f$ in critical spaces

Albert Cohen, Ronald DeVore, Eitan Tadmor

We construct uniformly bounded solutions of the equation $d i v u = f$ for arbitrary data $f$ in the critical spaces $L^{d} (Ω)$ , where $Ω$ is a domain of $R^{d}$ . Thi…

Sampling and reconstruction of convex functions

Constructions of bounded solutions of divu=f in critical spaces

Constructions of bounded solutions of $d i v u = f$ in critical spaces