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Doost Ali Mojdeh

Doost Ali Mojdeh

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Faculty of Mathematical Sciences
Address: Department of Mathematics, University of Mazandaran, Babolsar, Iran
Phone: 011-35302448

Research

Title
Nordhaus-Gaddum type inequalities for multiple domination and packing parameters in graphs
Type
JournalPaper
Keywords
k-domination number, Nordhaus{Gaddum inequality, open packing number, packing number, total domination number.
Year
2020
Journal Contributions to Discrete Mathematics
DOI
Researchers Doost Ali Mojdeh ، Babak Samadi ، Lutz Volkmann

Abstract

We study the Nordhaus-Gaddum type results for (k−1,k,j) and k-domination numbers of a graph G and investigate these bounds for the k-limited packing and k-total limited packing numbers in graphs with emphasis on the case k=1. In the special case (k−1,k,j)=(1,2,0), we give an upper bound on dd(G)+dd(¯¯¯¯G) stronger than the bound presented by Harary and Haynes (1996). Moreover, we establish upper bounds on the sum and product of packing and open packing numbers and characterize all graphs attaining these bounds.