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Sep 2 at 22:37 comment added Roberto Imbuzeiro Oliveira Thanks, @SandeepSilwal! The paper does not quite prove APX-hardness for the fixed-k problem, but it surely is a relevant reference.
Sep 2 at 18:34 comment added Sandeep Silwal This appears to be APX-hard sciencedirect.com/science/article/pii/S0304397518302408
Sep 2 at 17:56 history edited Michael Hardy CC BY-SA 4.0
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Sep 2 at 17:41 history asked Roberto Imbuzeiro Oliveira CC BY-SA 4.0