2 papers
math.OC2026
Computation of Least Trimmed Squares: A Branch-and-Bound framework with Hyperplane Arrangement Enhancements
Xiang Meng, Andrés Gómez, Rahul Mazumder
We study computational aspects of a key problem in robust statistics -- the penalized least trimmed squares (LTS) regression problem, a robust estimator that mitigates the influenc…
math.DG2026
Equivariant Smoothing Processes on Currents and Spaces with Bounded Curvature
Andrés Ahumada Gómez
We introduce actions of a compact Lie group in two regularization processes: in De Rham's approximation process of currents on a smooth manifold by smooth currents, and in a smooth…