𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Transcendental values of the digamma function

✍ Scribed by M. Ram Murty; N. Saradha


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
168 KB
Volume
125
Category
Article
ISSN
0022-314X

No coin nor oath required. For personal study only.

✦ Synopsis


Let ψ(x) denote the digamma function, that is, the logarithmic derivative of Euler's -function. Let q be a positive integer greater than 1 and γ denote Euler's constant. We show that all the numbers ψ(a/q) + γ, (a, q) = 1, 1 a q, are transcendental. We also prove that at most one of the numbers γ, ψ(a/q), (a, q) = 1, 1 a q,


πŸ“œ SIMILAR VOLUMES


On conditional irrationality measures fo
✍ Kh. Hessami Pilehrood; T. Hessami Pilehrood πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 146 KB

The aim of this work is to obtain the so-called standard lemmas on irrationality bases using the principles of Chudnovsky and then apply them to obtain conditional irrationality measures for values of the digamma function.

Infinite family of approximations of the
✍ Isa Muqattash; Mohammed Yahdi πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 184 KB

The aim of this work is to find "good" approximations to the Digamma function Ψ . We construct an infinite family of "basic" functions {I a , a ∈ [0, 1]} covering the Digamma function. These functions are shown to approximate Ψ locally and asymptotically, and it is shown that for any x ∈ R + , there

Programs for computing the logarithm of
✍ K.S. KΓΆlbig πŸ“‚ Article πŸ“… 1972 πŸ› Elsevier Science 🌐 English βš– 392 KB

This routine occasionally gives wrong results, a correction GAMMA as part of their program for calculating the has been published in Computer Phys. Commun. 3 (1972) 276. Coulomb phase shift. We note here that Luke [13] has \* An earlier version of this program was written by ginary part. This can be