On ergodic actions whose self-joinings are graphs
نویسندگان
چکیده
منابع مشابه
Some Families of Graphs whose Domination Polynomials are Unimodal
Let $G$ be a simple graph of order $n$. The domination polynomial of $G$ is the polynomial $D(G, x)=sum_{i=gamma(G)}^{n} d(G,i) x^{i}$, where $d(G,i)$ is the number of dominating sets of $G$ of size $i$ and $gamma(G)$ is the domination number of $G$. In this paper we present some families of graphs whose domination polynomials are unimodal.
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متن کاملsome families of graphs whose domination polynomials are unimodal
let $g$ be a simple graph of order $n$. the domination polynomial of $g$ is the polynomial $d(g, x)=sum_{i=gamma(g)}^{n} d(g,i) x^{i}$, where $d(g,i)$ is the number of dominating sets of $g$ of size $i$ and $gamma(g)$ is the domination number of $g$. in this paper we present some families of graphs whose domination polynomials are unimodal.
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ژورنال
عنوان ژورنال: Ergodic Theory and Dynamical Systems
سال: 1987
ISSN: 0143-3857,1469-4417
DOI: 10.1017/s0143385700004193