Skip to Main Content

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

The Odlyzko conjecture and O’Hara’s unimodality proof
HTML articles powered by AMS MathViewer

by Dennis Stanton and Doron Zeilberger PDF
Proc. Amer. Math. Soc. 107 (1989), 39-42 Request permission

Abstract:

We observe that Andrew Odlyzko’s conjecture that the Maclaurin coefficients of $1/[(1 + q)(1 + q + {q^2}) \cdots (1 + q + \cdots + {q^{k - 1}})]$ have alternating signs is an almost immediate consequence of an identity that is implied by Kathy O’Hara’s recent magnificent combinatorial proof of the unimodality of the Gaussian coefficients.
References
  • George E. Andrews, Partitions and Durfee dissection, Amer. J. Math. 101 (1979), no. 3, 735–742. MR 533197, DOI 10.2307/2373804
  • I. G. Macdonald, Symmetric functions and Hall polynomials, Oxford Mathematical Monographs, The Clarendon Press, Oxford University Press, New York, 1979. MR 553598
  • A. M. Odlyzko, Differences of the partition function, Acta Arith. 49 (1988), no. 3, 237–254. MR 932523, DOI 10.4064/aa-49-3-237-254
  • K. M. O’Hara, Unimodality of Gaussian coefficients: a constructive proof, research announcement.
  • Kathleen M. O’Hara, Unimodality of Gaussian coefficients: a constructive proof, J. Combin. Theory Ser. A 53 (1990), no. 1, 29–52. MR 1031611, DOI 10.1016/0097-3165(90)90018-R
  • Doron Zeilberger, Kathy O’Hara’s constructive proof of the unimodality of the Gaussian polynomials, Amer. Math. Monthly 96 (1989), no. 7, 590–602. MR 1008789, DOI 10.2307/2325177
  • —, A one-line high school algebra proof of the unimodality of the Gaussian polynomials ${\left [ {\begin {array}{*{20}{c}} n \\ k \\ \end {array} } \right ]_q}$ for $k < 20$, Proceedings of the IMA Workshop on $q$-series, Vol. 18, Springer.
Similar Articles
  • Retrieve articles in Proceedings of the American Mathematical Society with MSC: 05A30, 05A15, 11B65
  • Retrieve articles in all journals with MSC: 05A30, 05A15, 11B65
Additional Information
  • © Copyright 1989 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 107 (1989), 39-42
  • MSC: Primary 05A30; Secondary 05A15, 11B65
  • DOI: https://doi.org/10.1090/S0002-9939-1989-0972238-1
  • MathSciNet review: 972238