Izvorni znanstveni članak
https://doi.org/10.21857/m3v76teqny
Estimates of the logarithmic derivative near a singular point and applications
Saada Hamouda
orcid.org/0000-0002-2750-559X
; Laboratory of pure and applied mathematics, University of Mostaganem (UMAB), Algeria
Sažetak
In this paper, we will give estimates near z = 0 for the logarithmic derivative | f (k)(z) / f(z) | where f is a meromorphic function in a region of the form D(0,R) = {z ∈ C : 0 < |z| < R}. Some applications on the growth of solutions of linear differential equations near a singular point are given.
Ključne riječi
Hrčak ID:
243440
URI
Datum izdavanja:
15.9.2020.
Posjeta: 792 *