ISAAC
2010
Springer
14 years 3 months ago
2010
Springer
A permutation graph is an intersection graph of segments lying between two parallel lines. A Seidel complementation of a finite graph at a vertex v consists in complementing the ed...
IWOCA
2009
Springer
14 years 12 months ago
2009
Springer
A vertex subset D of a graph G is a dominating set if every vertex of G is either in D or is adjacent to a vertex in D. The paired-domination problem on G asks for a minimum-cardi...