English

A property of logarithmically absolutely monotonic functions and the logarithmically complete monotonicity of a power-exponential function

Classical Analysis and ODEs 2010-08-20 v1

Abstract

In the article, a notion "logarithmically absolutely monotonic function" is introduced, an inclusion that a logarithmically absolutely monotonic function is also absolutely monotonic is revealed, the logarithmically complete monotonicity and the logarithmically absolute monotonicity of the function (1+αx)x+β\bigl(1+\frac{\alpha}x\bigr) ^{x+\beta} are proved, where α\alpha and β\beta are given real parameters, a new proof for the inclusion that a logarithmically completely monotonic function is also completely monotonic is given, and an open problem is posed.

Keywords

Cite

@article{arxiv.0903.5038,
  title  = {A property of logarithmically absolutely monotonic functions and the logarithmically complete monotonicity of a power-exponential function},
  author = {Feng Qi and Bai-Ni Guo},
  journal= {arXiv preprint arXiv:0903.5038},
  year   = {2010}
}

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8 pages