, Volume 16, Issue 2, pp 359–371

Khinchine type inequalities with optimal constants via ultra log-concavity


    • Institute of MathematicsUniversity of Warsaw
  • Krzysztof Oleszkiewicz
    • Institute of MathematicsUniversity of Warsaw
    • Institute of MathematicsPolish Academy of Sciences

DOI: 10.1007/s11117-011-0130-z


We derive Khinchine type inequalities for even moments with optimal constants from the result of Walkup (J Appl Probab 13:76–85, 1976) which states that the class of log-concave sequences is closed under the binomial convolution.


Log-concavity Ultra log-concavity Khinchine inequality Factorial moments

Mathematics Subject Classification (2000)

60E15 26D15


We are grateful to Matthieu Fradelizi and Olivier Guédon for pointing to us the article of Walkup, and for their help in tracing some other references.

Open Access

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© The Author(s) 2011