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Inductive proofs of q-log concavity

✍ Scribed by Bruce E. Sagan


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
1015 KB
Volume
99
Category
Article
ISSN
0012-365X

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For k l we construct an injection from the set of pairs of matchings in a given graph G of sizes l&1 and k+1 into the set of pairs of matchings in G of sizes l and k. This provides a combinatorial proof of the log-concavity of the sequence of matching numbers of a graph. Besides, this injection impl

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