Japan Journal of Industrial and Applied Mathematics

, Volume 11, Issue 3, pp 343–361

Canonical cactus representation for minimum cuts


    • Department of Applied Mathematics and PhysicsKyoto University
  • Tiko Kameda
    • School of Computing ScienceSimon Fraser University

DOI: 10.1007/BF03167227

Cite this article as:
Nagamochi, H. & Kameda, T. Japan J. Indust. Appl. Math. (1994) 11: 343. doi:10.1007/BF03167227


It is known that all minimum cuts in a networkN can be embedded in a cactus whose size is bounded by a linear function of the number of vertices inN, such that any minimum cut ofN can be easily obtained as a minimum cut of the cactus. However, such a representation for a given network is not unique. We introduce two canonical forms of cactus representation for the minimum cuts and show their uniqueness. These cacti contain at most twice as many vertices asN.

Key words

undirected multigraphcactus representationminimum cutcanonical formisomorphism
Download to read the full article text

Copyright information

© JJIAM Publishing Committee 1994