Pith. sign in

REVIEW 1 cited by

Martingales and descent statistics

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1901.01719 v4 pith:7QJDBFXG submitted 2019-01-07 math.PR math.CO

classification math.PRmath.CO
keywords descentspermutationsstatisticsdescentmartingalesnumberrandomtechniques
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
abstract

This paper develops techniques to study the number of descents in random permutations via martingales. We relax an assumption in the Berry-Esseen theorem of Bolthausen (1982) to extend the theorem's scope to martingale differences of time-dependent variances. This extension leads to a new proof of the fact that the number of descents in random permutations is asymptotically normal with an error bound of order $1/\sqrt{n}.$ The same techniques are shown to be applicable to other descent and descent-related statistics as they satisfy certain recurrence relation conditions. These statistics include inversions, descents in signed permutations, descents in Stirling permutations, the length of the longest alternating subsequences, descents in matchings and two-sided Eulerian numbers.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A central limit theorem for the two-sided descent statistic on Coxeter groups

    math.CO 2019-08 conditional novelty 6.0 of 10

    For well-behaved sequences of finite Coxeter groups, the descent-plus-inverse-descent statistic satisfies a central limit theorem exactly when its variance tends to infinity.

Pith tools