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Short Cycle Covers of Cubic Graphs and Graphs with Minimum Degree Three

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arxiv 0908.1423 v1 pith:7DD5FF5W submitted 2009-08-11 math.CO

classification math.CO
keywords cyclebridgelesscovereverygraphlengthtotalapprox
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abstract

The Shortest Cycle Cover Conjecture of Alon and Tarsi asserts that the edges of every bridgeless graph with $m$ edges can be covered by cycles of total length at most $7m/5=1.400m$. We show that every cubic bridgeless graph has a cycle cover of total length at most $34m/21\approx 1.619m$ and every bridgeless graph with minimum degree three has a cycle cover of total length at most $44m/27\approx 1.630m$.

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