2 citations · 4 across the 7 of their papers we have counts for
3 papers · 2 filters
Very Weak Space-Time Variational Formulation for the Wave Equation: Analysis and Efficient Numerical Solution
Julian Henning, Davide Palitta, Valeria Simoncini +1
We introduce a very weak space-time variational formulation for the wave equation, prove its well-posedness (even in the case of minimal regularity) and optimal inf-sup stability.…
A spectral PALM algorithm for matrix and tensor-train based Dictionary Learning
Domitilla Brandoni, Margherita Porcelli, Valeria Simoncini
Dictionary Learning (DL) is one of the leading sparsity promoting techniques in the context of image classification, where the "dictionary" matrix D of images and the sparse matrix…
The Short-term Rational Lanczos Method and Applications
Davide Palitta, Stefano Pozza, Valeria Simoncini
Rational Krylov subspaces have become a reference tool in dimension reduction procedures for several application problems. When data matrices are symmetric, a short-term recurrence…