English

Avoidance criteria for normality of quasiregular mappings

Complex Variables 2026-05-13 v1

Abstract

Peter Lappan in [9] proved that for each nN={1,2,3,}n\in \mathbb{N}=\{1,2,3,\dots\}, let f1,n,f2,nf_{1,n}, f_{2,n} and f3,nf_{3,n} be three continuous functions on D:={zC:z<1}\mathbb{D}:=\{z\in \mathbb{C} : |z| < 1\} such that for each j=1,2,3,j=1,2,3, the sequence (fj,n)(f_{j,n}) converges locally uniformly to a function fjf_j on D\mathbb{D}. Suppose that the three functions f1,f2,f_1, f_2, and f3f_3 avoid each other on D\mathbb{D}. Let F=(gn)\mathcal{F} =(g_n) be a sequence of meromorphic functions in D\mathbb{D} with the property that for each nn, the four functions gn,f1,n,f2,n,g_n, f_{1,n}, f_{2,n}, and f3,nf_{3,n} avoid each other, then F\mathcal{F} is normal. We present here an analogue of this result in the setting of quasiregular mappings. We also obtain analogues of a few other results by Peter Lappan in [9] to quasiregular setting in the Euclidean space Rn\mathbb{R}^n for normal families and normal quasiregular mappings.

Keywords

Cite

@article{arxiv.2605.11791,
  title  = {Avoidance criteria for normality of quasiregular mappings},
  author = {Gopal Datt and Kushal Lalwani and Ashish Kumar Trivedi},
  journal= {arXiv preprint arXiv:2605.11791},
  year   = {2026}
}