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Sharp inequalities for polygamma functions

In: Mathematica Slovaca, vol. 65, no. 1
Bai-Ni Guo - Feng Qi - Jiao-Lian Zhao - Qiu-Ming Luo
Detaily:
Rok, strany: 2015, 103 - 120
Kľúčové slová:
inequality, polygamma function, psi function, completely monotonic function, logarithmically completely monotonic function
O článku:
In the paper, the authors review some inequalities and the (logarithmically) complete monotonicity concerning the gamma and polygamma functions and, more importantly, present a sharp double inequality for bounding the polygamma function by rational functions.
Ako citovať:
ISO 690:
Guo, B., Qi, F., Zhao, J., Luo, Q. 2015. Sharp inequalities for polygamma functions. In Mathematica Slovaca, vol. 65, no.1, pp. 103-120. 0139-9918. DOI: https://doi.org/10.1515/ms-2015-0010

APA:
Guo, B., Qi, F., Zhao, J., Luo, Q. (2015). Sharp inequalities for polygamma functions. Mathematica Slovaca, 65(1), 103-120. 0139-9918. DOI: https://doi.org/10.1515/ms-2015-0010
O vydaní:
Publikované: 1. 2. 2015