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Recall: if
G has min-cut c, then in G(r/c)
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all cuts
approximate their expected
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values to within e.
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Applications:
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Min-cut in
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O*(mc) time [G]
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Approximate/exact
in
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O*((m/c) c) =O*(m)
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s-t min-cut of
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value v in O*(mv)
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Approximate in
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O*(mv/c)
time
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Trouble
if c is small and v large.
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