4 papers
A piecewise constant levelset approach for semi-blind deconvolution: Application to barcode decoding
Adriano De Cezaro, Eduardo Hafemann, Antonio Leitão
We consider a semi-blind deconvolution problem arising in the decoding of blurred linear barcodes. Building on the Piecewise Constant Level Set (PCLS) framework introduced in [De\,…
A low-regularity Riemannian positive mass theorem for non-spin manifolds with distributional curvature
Eduardo Hafemann
This article establishes a low-regularity Riemannian positive mass theorem for non-spin manifolds whose metrics are only and smooth outside a comp…
Hawking's singularity theorem for Lipschitz Lorentzian metrics
Matteo Calisti, Melanie Graf, Eduardo Hafemann +2
We prove Hawking's singularity theorem for spacetime metrics of local Lipschitz regularity. The proof rests on (1) new estimates for the Ricci curvature of regularising smooth metr…
Penrose inequality for integral energy conditions
Eduardo Hafemann, Eleni-Alexandra Kontou
The classical Penrose inequality, a relation between the ADM mass and the area of any cross section of the black hole event horizon, was introduced as a test of the weak cosmic cen…