# mixing_expansion¶

mixing_expansion(G, S, T=None, weight=None)[source]

Returns the mixing expansion between two node sets.

The mixing expansion is the quotient of the cut size and twice the number of edges in the graph. [1]

Parameters: G (NetworkX graph) S (sequence) – A sequence of nodes in G. T (sequence) – A sequence of nodes in G. weight (object) – Edge attribute key to use as weight. If not specified, edges have weight one. The mixing expansion between the two sets S and T. number

References

 [1] Vadhan, Salil P. “Pseudorandomness.” Foundations and Trends in Theoretical Computer Science 7.1–3 (2011): 1–336.