Details

Autor(en) / Beteiligte

• Guo, Bai-Ni
• Qi, Feng
• Zhao, Jiao-Lian
• Luo, Qiu-Ming

Titel

Sharp Inequalities for Polygamma Functions

Ist Teil von

• Mathematica Slovaca, 2015-02, Vol.65 (1), p.103-120

Ort / Verlag

Heidelberg: De Gruyter Open

Erscheinungsjahr

2015

Link zum Volltext

Beschreibungen/Notizen

• 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.