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Questions
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Is there a characterization of hyperplane arrangement intersection posets?

apr 11 at 16:08 Michael Falk 273●2●5

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Non-constructive proofs vs. efficient algorithms

apr 5 at 8:17 Kaveh 2,177●5●24

 
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What is the graphical version of the circle parking story?

mar 15 at 18:36 Sam Hopkins 366●1●1●10

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Is there a n/2 version of the Erdős-Hanani conjecture?

feb 16 at 2:24 Sam Hopkins 366●1●1●10

 
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172
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Number of forests of size $i$ and the Tutte polynomial

nov 3 at 2:59 Gjergji Zaimi 37.3k●2●72●149

 
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Hypergraph coloring problem motivated by legal billards racks

aug 31 at 5:34 Douglas Zare 13k●3●36●58

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Size of union of a set of subsets and its permutations

jul 10 at 20:20 Sam Hopkins 366●1●1●10