Computer Science > Data Structures and Algorithms
arXiv:2602.13756 (cs)
[Submitted on 14 Feb 2026 (v1), last revised 14 Jul 2026 (this version, v2)]
Abstract:We show that the spanning tree congestion problem is NP-complete even on proper interval graphs with linear clique-width at most 4 and diameter 3. By slightly modifying the reduction, we also show that the problem is NP-complete on (general) graphs of diameter 2.
Submission history
From: Yota Otachi [view email]
[v1]
Sat, 14 Feb 2026 13:03:30 UTC (86 KB)
[v2]
Tue, 14 Jul 2026 13:03:11 UTC (109 KB)
Bibliographic Tools
Bibliographic and Citation Tools
Bibliographic Explorer Toggle
Code, Data, Media
Code, Data and Media Associated with this Article
Demos
Demos
Related Papers
Recommenders and Search Tools
About arXivLabs
arXivLabs: experimental projects with community collaborators
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.
Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.
Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.



















