activity
20142026
most citedA sharp lower bound for a class of non-local approximations of the total variation

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

collaborators

6 papers

math.AP2026

Weak Harnack inequality and Cartan property for nonlocal -minimizers

Panu Lahti, Yuxin Li, Khanh Nguyen

We establish a weak Harnack inequality for nonlocal -subminimizers in a complete, connected, doubling metric measure space where . As a corollary, we prove that $W^…

math.FA2025

Non-local functionals, total variation, and Gamma-convergence with respect to area-strict convergence

Panu Lahti, Zhuolin Li

We study a class of non-local functionals that was introduced by Brezis--Seeger--Van Schaftingen--Yung, and can be used to characterize the total variation of functions. We establi…

math.FA2025

Lusin approximation for functions of bounded variation

Panu Lahti, Khanh Nguyen

We prove a Lusin approximation of functions of bounded variation. If is a function of bounded variation on an open set , where is a given complete doubl…

math.FA2024

Existence and uniqueness of limits at infinity for bounded variation functions

Panu Lahti, Khanh Nguyen

In this paper, we study the existence of limits at infinity along almost every infinite curve for the upper and lower approximate limits of bounded variation functions on complete…

math.FA2023★ 1 cited

A sharp lower bound for a class of non-local approximations of the total variation

Panu Lahti

We study a class of non-local functionals that was introduced by Brezis-Seeger-Van Schaftingen-Yung (2022), and can be used to characterize functions of bounded variation. We give…

math.MG2014

Stability and continuity of functions of least gradient

Heikki Hakkarainen, Riikka Korte, Panu Lahti +1

In this note we prove that on metric measure spaces, functions of least gradient, as well as local minimizers of the area functional (after modification on a set of measure zero) a…