Mathematics – Combinatorics
Scientific paper
2007-02-15
Mathematics
Combinatorics
12 pages, 1 figure
Scientific paper
What distribution of graphical degree sequence is invariant under ``scaling''? Are these graphs always power-law graphs? We show the answer is a surprising ``yes'' for sparse graphs if we ignore isolated vertices, or more generally, the vertices with degrees less than a fixed constant $k$. We obtain a concentration result on the degree sequence of a random induced subgraph. The case of hypergraphs (or set-systems) is also examined.
Cooper Joshua N.
Lu Lincoln
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