caa a22 4500 606200568 CHVBK 20210128100944.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00025-015-0439-1 doi (NATIONALLICENCE)springer-10.1007/s00025-015-0439-1 Asymptotic Formulas and Inequalities for the Gamma Function in Terms of the Tri-Gamma Function [Elektronische Daten] [Cristinel Mortici, Feng Qi] In the paper, the authors establish some asymptotic formulas and double inequalities for the factorial n! and the gamma function Γ in terms of the tri-gamma function ψ′. Springer Basel, 2015 Asymptotic formulas nationallicence inequalities nationallicence factorial nationallicence gamma function nationallicence tri-gamma function nationallicence Mortici Cristinel Department of Mathematics, Valahia University of Târgovişte, Bd. Unirii 18, 130082, Târgovişte, Romania aut Qi Feng College of Mathematics, Inner Mongolia University for Nationalities, Inner Mongolia Autonomous Region, 028043, Tongliao City, China aut Results in Mathematics Springer Basel 67/3-4(2015-06-01), 395-402 1422-6383 67:3-4<395 2015 67 25 https://doi.org/10.1007/s00025-015-0439-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00025-015-0439-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mortici Cristinel Department of Mathematics, Valahia University of Târgovişte, Bd. Unirii 18, 130082, Târgovişte, Romania aut NATIONALLICENCE 700 1- Qi Feng College of Mathematics, Inner Mongolia University for Nationalities, Inner Mongolia Autonomous Region, 028043, Tongliao City, China aut NATIONALLICENCE 773 0- Results in Mathematics Springer Basel 67/3-4(2015-06-01), 395-402 1422-6383 67:3-4<395 2015 67 25