On H-irregularity strength of graphs
Faraha Ashraf, Martin Bača, Marcela Lascśaková, Andrea Semaničová–Feňovčíková · Discussiones Mathematicae Graph Theory · 2017
New graph characteristic, the total H-irregularity strength of a graph, is introduced. Estimations on this parameter are obtained and for some families of graphs the precise values of this parameter are proved.