Path partitions of hypercubes

  • Authors:
  • Petr Gregor;Tomáš Dvořák

  • Affiliations:
  • Faculty of Mathematics and Physics, Charles University, Malostranské nám. 25, 118 00 Prague, Czech Republic;Faculty of Mathematics and Physics, Charles University, Malostranské nám. 25, 118 00 Prague, Czech Republic

  • Venue:
  • Information Processing Letters
  • Year:
  • 2008

Quantified Score

Hi-index 0.90

Visualization

Abstract

A path partition of a graph G is a set of vertex-disjoint paths that cover all vertices of G. Given a set P={{a"i,b"i}}"i"="1^m of pairs of distinct vertices of the n-dimensional hypercube Q"n, is there a path partition {P"i}"i"="1^m of Q"n such that a"i and b"i are endvertices of P"i? Caha and Koubek showed that for 6m==3, there is a balanced set P in Q"n such that 2m-e=n, but no path partition with endvertices prescribed by P exists.