activity
20072024
most citedExtension of CR functions from boundaries in

7 citations · 26 across the 10 of their papers we have counts for

collaborators

10 papers

math.CV2024

CR functions at CR singularities: approximation, extension, and hulls

Jiri Lebl, Alan Noell, Sivaguru Ravisankar

We study three possible definitions of the notion of CR functions at CR singular points, their extension to a fixed-neighborhood of the singular point, and analogues of the Baouend…

math.CV2021★ 2 cited

Cartan uniqueness theorem on nonopen sets

Jiri Lebl, Alan Noell, Sivaguru Ravisankar

Cartan's uniqueness theorem does not hold in general for CR mappings, but it does hold under certain conditions guaranteeing extendibility of CR functions to a fixed neighborhood.…

math.CV2020★ 1 cited

On CR singular CR images

Jiří Lebl, Alan Noell, Sivaguru Ravisankar

We say that a CR singular submanifold has a removable CR singularity if the CR structure at the CR points of extends through the singularity as an abstract CR structure on…

math.CV2019★ 2 cited

A CR singular analogue of Severi's theorem

Jiri Lebl, Alan Noell, Sivaguru Ravisankar

Real-analytic CR functions on real-analytic CR singular submanifolds are not in general restrictions of holomorphic functions, unlike in the CR nonsingular case. We give a simple c…

math.CV2019★ 1 cited

Peak sets and boundary interpolation sets for the unit disc: a survey

Alan Noell

This paper surveys results concerning peak sets and boundary interpolation sets for the unit disc. It includes hitherto unpublished results proved by David C. Ullrich on peak sets…

math.CV2018★ 2 cited

On the Levi-flat Plateau problem

Jiri Lebl, Alan Noell, Sivaguru Ravisankar

We solve the Levi-flat Plateau problem in the following case. Let , , be a connected compact real-analytic codimension-two submanifold with o…