Bounds on Laplacian eigenvalues related to total and signed domination of graphs
نویسندگان
چکیده
منابع مشابه
New bounds on the signed total domination number of graphs
In this paper, we study the signed total domination number in graphs and present new sharp lower and upper bounds for this parameter. For example by making use of the classic theorem of Turán [8], we present a sharp lower bound on Kr+1-free graphs for r ≥ 2. Applying the concept of total limited packing we bound the signed total domination number of G with δ(G) ≥ 3 from above by n−2b 2ρo(G)+δ−3...
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ژورنال
عنوان ژورنال: Czechoslovak Mathematical Journal
سال: 2010
ISSN: 0011-4642,1572-9141
DOI: 10.1007/s10587-010-0035-1