Timeline for Optimal bounds for an alternating sum on a downset
Current License: CC BY-SA 3.0
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| Jul 9, 2012 at 18:16 | comment | added | Terry Tao | Oh, this does look very useful, thanks. Actually, even the more elementary bound $j f_j \leq (d-j+1) f_{j-1}$ coming from double-counting the elements of the downset of cardinality j and j-1 (I may have the normalisations slightly different from your post) may already kill off the problem... I'll have to think about this. | |
| Jul 9, 2012 at 17:23 | history | answered | Christian Stump | CC BY-SA 3.0 |