Properly Coloured Cycles and Paths: Results and Open Problems

  • Authors:
  • Gregory Gutin;Eun Jung Kim

  • Affiliations:
  • Department of Computer Science, University of London, Egham, Surrey, UK TW20 0EX;Department of Computer Science, University of London, Egham, Surrey, UK TW20 0EX

  • Venue:
  • Graph Theory, Computational Intelligence and Thought
  • Year:
  • 2009

Quantified Score

Hi-index 0.00

Visualization

Abstract

In this paper, we consider a number of results and six conjectures on properly coloured (PC) paths and cycles in edge-coloured multigraphs. We overview some known results and prove new ones. In particular, we consider a family of transformations of an edge-coloured multigraph G into an ordinary graph that allow us to check the existence of PC cycles and PC (s ,t )-paths in G and, if they exist, to find shortest ones among them. We raise a problem of finding the optimal transformation and consider a possible solution to the problem.