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A bisection of a graph is a partition of its vertex set into two sets which differ in size by at most 1, and its size is the number of edges between the two sets. Let G be a graph with m edges, perfect matchings and girth at least 6. Let d1, d2, . . ., dn be vertex degrees, then there is a constant c > 0 such that G admits a bisection of size at least m/2 + c ∑ni=1 di. It follows as a corollary that G has a bisection of size at least m/2 + cm3/4. © 2019 Forum-Editrice Universitaria Udinese SRL. All rights reserved.
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Italian Journal of Pure and Applied Mathematics
ISSN: 1126-8042
Year: 2019
Issue: 42
Page: 80-87
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JCR@2023
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