ISSN 1234-3099 (print version)

ISSN 2083-5892 (electronic version)

Discussiones Mathematicae Graph Theory

IMPACT FACTOR 2019: 0.755

SCImago Journal Rank (SJR) 2019: 0.600

Rejection Rate (2018-2019): c. 84%

Discussiones Mathematicae Graph Theory


Discussiones Mathematicae Graph Theory 27(3) (2007) 553-558
DOI: 10.7151/dmgt.1380


Pooya Hatami

Department of Mathematical Sciences
Sharif University of Technology
Tehran, Iran


We introduce a 2-factor approximation algorithm for the minimum total covering number problem.

Keywords: covering, total covering, approximation algorithm.

2000 Mathematics Subject Classification: 05C69.


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Received 20 September 2006
Revised 30 December 2006
Accepted 3 January 2007