The irregularity strength of Km,m is 4 for odd m
Tài liệu tham khảo
G. Chartrand, M. Jacobson, J. Lebel, O. Oellerman, S. Ruiz and F. Saba, Irregular networks, Submitted to Fort Wayne Conference Proceedings.
R. Faudree, M. Jacobson, J. Lehel and R. H. Schelp, Irregular networks, Regular graphs and integer matrices with distinct row and column sums, Submitted to Discrete Math.