English

Value distribution of some differential monomials

Complex Variables 2020-01-07 v1

Abstract

Let ff be a transcendental meromorphic function defined in the complex plane C\mathbb{C}. We consider the value distribution of the differential polynomial fq0(f(k))qkf^{q_{0}}(f^{(k)})^{q_{k}}, where q0(2),qk(1)q_{0}(\geq 2), q_{k}(\geq 1) are k(1)k(\geq1) non-negative integers. We obtain a quantitative estimation of the characteristic function T(r,f)T(r, f) in terms of N(r,1fq0(f(k))qk1)\overline{N}\left(r,\frac{1}{f^{q_{_{0}}}(f^{(k)})^{q_{k}}-1}\right).\par Our result generalizes the results obtained by Xu et al. (Math. Inequal. Appl., 14, 93-100, 2011) and Karmakar and Sahoo (Results Math., 73, 2018) for a particular class of transcendental meromorphic functions.

Keywords

Cite

@article{arxiv.2001.01287,
  title  = {Value distribution of some differential monomials},
  author = {Bikash Chakraborty and Sudip Saha and Amit Kumar Pal and Jayanta Kamila},
  journal= {arXiv preprint arXiv:2001.01287},
  year   = {2020}
}

Comments

10 pages. arXiv admin note: text overlap with arXiv:1903.10940

R2 v1 2026-06-23T13:03:17.104Z