English

NP-complete variants of some classical graph problems

Computational Complexity 2020-01-14 v1

Abstract

Some classical graph problems such as finding minimal spanning tree, shortest path or maximal flow can be done efficiently. We describe slight variations of such problems which are shown to be NP-complete. Our proofs use straightforward reduction from 33-SAT.

Keywords

Cite

@article{arxiv.2001.04120,
  title  = {NP-complete variants of some classical graph problems},
  author = {Per Alexandersson},
  journal= {arXiv preprint arXiv:2001.04120},
  year   = {2020}
}

Comments

6 pages

R2 v1 2026-06-23T13:09:23.330Z