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Journal of Mathematical Chemistry

, Volume 49, Issue 2, pp 489–506 | Cite as

The structure character of essentially disconnected polyomino graphs

  • Liu Zhifang
  • C. Rongsi
Original Paper

Abstract

This paper deals with the structure of essentially disconnected polyomino graphs. It is proved that for an essentially disconnected polyomino graph, the normal components induced digraph is acyclic and connected. The lower bond for the number of normal components of an essentially disconnected polyomino graph is investigated. Moreover, the essentially disconnected polyomino graphs with two or three normal components are classified and constructed.

Keywords

Construction Polyomino graph Matching Fixed bond Essentially disconnected Normal 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Information TechnologyFujian Jiangxia CollegeFuzhouPeople’s Republic of China
  2. 2.Center for Discrete Mathematics and Theoretical Computer ScienceFuzhou UniversityFuzhouPeople’s Republic of China

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