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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Renewal sequences and record chains related to multiple zeta sums
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by Jean-Jil Duchamps, Jim Pitman and Wenpin Tang PDF
Trans. Amer. Math. Soc. 371 (2019), 5731-5755 Request permission

Abstract:

For the random interval partition of $[0,1]$ generated by the uniform stick-breaking scheme known as GEM$(1)$, let $u_k$ be the probability that the first $k$ intervals created by the stick-breaking scheme are also the first $k$ intervals to be discovered in a process of uniform random sampling of points from $[0,1]$. Then $u_k$ is a renewal sequence. We prove that $u_k$ is a rational linear combination of the real numbers $1, \zeta (2), \ldots , \zeta (k)$ where $\zeta$ is the Riemann zeta function, and show that $u_k$ has the limit $1/3$ as $k \rightarrow \infty$. Related results provide probabilistic interpretations of some multiple zeta values in terms of a Markov chain derived from the interval partition. This Markov chain has the structure of a weak record chain. Similar results are given for the GEM$(\theta )$ model, with beta$(1,\theta )$ instead of uniform stick-breaking factors, and for another more algebraic derivation of renewal sequences from the Riemann zeta function.
References
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Additional Information
  • Jean-Jil Duchamps
  • Affiliation: Collége de France, 11 place Marcelin Berthelot, 75231 Paris
  • Email: jean-jil.duchamps@normalesup.org
  • Jim Pitman
  • Affiliation: Statistics Department, University of California, 367 Evans Hall, Berkeley, California 94720
  • MR Author ID: 140080
  • Email: pitman@stat.berkeley.edu
  • Wenpin Tang
  • Affiliation: Statistics Department, University of California, 367 Evans Hall, Berkeley, California 94720
  • MR Author ID: 1108213
  • Email: wenpintang@stat.berkeley.edu
  • Received by editor(s): July 24, 2017
  • Received by editor(s) in revised form: January 10, 2018
  • Published electronically: September 18, 2018
  • © Copyright 2018 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 371 (2019), 5731-5755
  • MSC (2010): Primary 11M06, 60C05; Secondary 60E05
  • DOI: https://doi.org/10.1090/tran/7516
  • MathSciNet review: 3937308