3 papers
math.ST2025
Asymptotic Distribution of Constrained Nearly-Isotonic Graph Fused Lasso
Vladimir Pastukhov
This paper studies the asymptotic distribution of a constrained lasso-type estimator for denoising signals defined on the nodes of a graph, where the underlying structure encodes r…
cond-mat.quant-gas2024
`Triviality' of universal relations for disordered systems
V. Pastukhov
The universal relations for spin- fermions with contact interaction in the presence of quenched disorder are discussed. The disorder is modeled by a random external potential…
math.ST2024
Fused Trend Filtering on Graphs
Vladimir Pastukhov
This paper is dedicated to the fused trend filtering on a general graph, which is a combination of fused estimator and 1-st order trend filtering on a graph. There are two cases of…