Şevli, HamdullahBatidotlessr, N.2020-11-212020-11-2120110895-7177https://doi.org/10.1016/j.mcm.2010.12.055https://hdl.handle.net/11467/3626In this paper we prove new complete monotonicity properties of some functions involving the gamma function. As consequences of them we establish various new upper and lower bounds for the gamma function and the harmonic numbers. © 2011 Elsevier Ltd.eninfo:eu-repo/semantics/openAccessComplete monotonicityDigamma functionGamma functionHarmonic numbersPolygamma functionsStirling formulaArticle5309.Oct17711775Q1WOS:000287729700019N/A2-s2.0-7995194868310.1016/j.mcm.2010.12.055