Exponential random graph models with soft clique constraints
- URL: http://arxiv.org/abs/2608.30869v1
- Date: Mon, 31 Aug 2026 14:31:57 GMT
- Title: Exponential random graph models with soft clique constraints
- Abstract summary: We consider an exponential random graph model which gives higher probability to $G in mathbfG_n than to $H in mathbfG_n$ if $G$ has fewer $r$-cliques than $H$.<n>The degree to which graphs with fewer $r$-cliques are given higher probability is determined by a positive weight $w$.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Let $r\geq3$ be fixed, and let $\mathbf{G}_n$ be the set of all simple graphs with vertex set $[n]=\{1,\ldots,n\}$. We consider an exponential random graph model which gives higher probability to $G \in \mathbf{G}_n$ than to $H \in \mathbf{G}_n$ if $G$ has fewer $r$-cliques than $H$. But all graphs in $\mathbf{G}_n$ have positive probability. The degree to which graphs with fewer $r$-cliques are given higher probability is determined by a positive weight $w$. We prove that, asymptotically almost surely as $n \to \infty$, a random graph from $\mathbf{G}_n$ has a vertex partition into $r-1$ parts of roughly equal size, the density of edges between the parts is close to $1/2$, and for every $\varepsilon > 0$ the density of edges within any part is less than $\varepsilon$. The asymptotic structural properties are independent of the weight $w$ as long as it is positive. We also extend the result to the context of several clique sizes, each one with its own weight.
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