Parity of an odd dominating set
نویسندگان
چکیده
For a simple graph $G$ with vertex set $V(G)=\{v_1,...,v_n\}$, we define the closed neighborhood of $u$ as \\$N[u]=\{v \in V(G) \; | v \text{is adjacent to} u \text{or} v=u \}$ and matrix $N(G)$ whose $i$th column is characteristic vector $N[v_i]$. We say $S$ odd dominating if $N[u]\cap S$ for all $u\in V(G)$. prove that parity cardinality an equal to rank $G$, where defined dimension space $N(G)$. Using this result several corollaries in one which obtain general formula nullity join graphs.
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ژورنال
عنوان ژورنال: Communications Faculty of Sciences University of Ankara. Series A1: mathematics and statistics
سال: 2022
ISSN: ['1303-5991']
DOI: https://doi.org/10.31801/cfsuasmas.1051208