Entire functions and some of their growth properties on the basis of generalized order (α, β)

被引:1
作者
Biswas, Tanmay [1 ]
Biswas, Chinmay [2 ]
Saha, Biswajit [3 ]
机构
[1] RN Tagore Rd PO Krishnagar, Rabindrapally 741101, W Bengal, India
[2] Nabadwip Vidyasagar Coll, Dept Math, Nabadwip 741302, W Bengal, India
[3] Govt Gen Degree Coll Muragachha, Dept Math, Nakashipara 741154, W Bengal, India
来源
INTERNATIONAL JOURNAL OF NONLINEAR ANALYSIS AND APPLICATIONS | 2021年 / 12卷 / 02期
关键词
Entire function; growth; composition; generalized order (alpha; beta); generalized lower order (alpha; (P;
D O I
10.22075/ijnaa.2021.22299.2346
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For any two entire functions f, g defined on finite complex plane C, the ratios M-f circle g(r)/M-f(r) and M-f(circle g)(r)/M-g(r) as r -> infinity are called the growth of composite entire function f circle g with respect to f and g respectively in terms of their maximum moduli. Several authors have worked about growth properties of functions in different directions. In this paper, we have discussed about the comparative growth properties of f circle g, f and g, and derived some results relating to the generalized order (alpha, beta) after revised the original definition introduced by Sheremeta, where (alpha, beta) are slowly increasing continuous functions defined on (-infinity, +infinity). Under different conditions, we have found the limiting values of the ratios formed from the left and right factors on the basis of their generalized order ((alpha, beta)) and generalized lower order ((alpha, beta)), and also established some inequalities in this regard.
引用
收藏
页码:1735 / 1747
页数:13
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