Albert Cohen

activity

20162024

most citedDiscrete least-squares approximations over optimized downward closed polynomial spaces in arbitrary dimension

1 citations · 1 across the 4 of their papers we have counts for

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math.NA2024

High order recovery of geometric interfaces from cell-average data

Albert Cohen, Olga Mula, Agustín Somacal

We consider the problem of recovering characteristic functions $u := χ_{Ω}$ from cell-average data on a coarse grid, and where $Ω$ is a compact set of $R^{d}$ . This task arises…

math.NA2016★ 1 cited

Discrete least-squares approximations over optimized downward closed polynomial spaces in arbitrary dimension

Albert Cohen, Giovanni Migliorati, Fabio Nobile

We analyze the accuracy of the discrete least-squares approximation of a function $u$ in multivariate polynomial spaces $P_{Λ} := span {y \mapsto y^{ν} : ν \in Λ}$ wit…