an:05554955
Zbl 1169.30314
Xu, Junfeng; Yi, Hongxun; Zhang, Zhanliang
Some inequalities of differential polynomials
EN
Math. Inequal. Appl. 12, No. 1, 99-113 (2009).
00244678
2009
j
30D35 26D10
value distribution; differential polynomial; reduced counting function
Summary: We consider the value distribution of the differential polynomials \(f^nf^{(k)}-1\), where \(n\) \((\geq 2)\), \(k\) are positive integers, and obtain some estimates only by the reduced counting function.