Complete monotonicity of some functions
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Feng Qi; Senlin Guo; Bai-Ni Guo
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Article
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2010
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Elsevier Science
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English
β 732 KB
In the present paper, we establish necessary and sufficient conditions for the functions | respectively to be monotonic and completely monotonic on (0, β), where i β N, Ξ± > 0 and Ξ² β₯ 0 are scalars, and Ο (i) (x) are polygamma functions.