Augmentation Lemma for Halin Conjecture
Combinatorics
2026-03-31 v2
Abstract
The longstanding conjecture of Halin characterizing the existence of normal spanning trees in infinite graphs has been recently proved by Max Pitz [3]. A critical step in the proof involves the construction of dominated torsos, whose properties are essential to the overall proof. In this note, we provide a correction to the proof of a key property of this construction.
Cite
@article{arxiv.2603.25513,
title = {Augmentation Lemma for Halin Conjecture},
author = {Jerzy Wojciechowski},
journal= {arXiv preprint arXiv:2603.25513},
year = {2026}
}