English

A Menger-type theorem for two induced paths

Combinatorics 2024-05-24 v5 Discrete Mathematics

Abstract

We give an approximate Menger-type theorem for when a graph GG contains two XYX-Y paths P1P_1 and P2P_2 such that P1P2P_1 \cup P_2 is an induced subgraph of GG. More generally, we prove that there exists a function f(d)O(d)f(d) \in O(d), such that for every graph GG and X,YV(G)X,Y \subseteq V(G), either there exist two XYX-Y paths P1P_1 and P2P_2 such that the distance between P1P_1 and P2P_2 is at least dd, or there exists vV(G)v \in V(G) such that the ball of radius f(d)f(d) centered at vv intersects every XYX-Y path.

Keywords

Cite

@article{arxiv.2305.04721,
  title  = {A Menger-type theorem for two induced paths},
  author = {Sandra Albrechtsen and Tony Huynh and Raphael W. Jacobs and Paul Knappe and Paul Wollan},
  journal= {arXiv preprint arXiv:2305.04721},
  year   = {2024}
}

Comments

13 pages, 10 figures

R2 v1 2026-06-28T10:28:43.573Z