An improvement of Hayman's inequality on an angular domain

• Autorzy: Cai-Feng Yi , Yu Wang , Hong-Yan Xu
• Języki publikacji: EN

Abstrakty

EN

We investigate the properties of meromorphic functions on an angular domain, and obtain a form of Yang's inequality on an angular domain by reducing the coefficients of Hayman's inequality. Moreover, we also study Hayman's inequality in different forms, and obtain accurate estimates of sums of deficiencies.

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Annales Polonici Mathematici
• Rocznik: 2010
• Tom: 99
• Numer: 2
• Strony: 181-192

Daty

wydano

2010

Twórcy

autor

Cai-Feng Yi

• Institute of Mathematics and Informatics, Jiangxi Normal University, 330022 Nanchang, Jiangxi, P.R. China

autor

Yu Wang

• Institute of Mathematics and Informatics, Jiangxi Normal University, 330022 Nanchang, Jiangxi, P.R. China

autor

Hong-Yan Xu

• Department of Informatics and Engineering, Jingdezhen Ceramic Institute, 333403 Jingdezhen, Jiangxi, P.R. China

Identyfikatory

DOI

10.4064/ap99-2-5