Open AccessA characterization of (γt,γ2)-trees
Author(s) -
Xinmin Hou,
Ning Li,
You Lu,
JunMing Xu
Publication year - 2010
Publication title -
discussiones mathematicae graph theory
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.476
H-Index - 19
eISSN - 2083-5892
pISSN - 1234-3099
DOI - 10.7151/dmgt.1504
Subject(s) - characterization (materials science) , mathematics , combinatorics , nanotechnology , materials science
Let t(G) and 2(G) be the total domination number and the 2domination number of a graph G, respectively. It has been shown that: t(T ) 2(T ) for any tree T . In this paper, we provide a constructive characterization of those trees with equal total domination number and 2-domination number.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom