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[期刊论文] 作者:Zhou Zehua, 来源:武汉大学学报:自然科学英文版 年份:1998
1PreliminariesDefinition1.1Supposethatforanya∈D,thereexistsaneighborhoodB(a,r)D,suchthat,onwhichB(a,r),f(z)=pa(z)qa(z),where.........
[期刊论文] 作者:ZHOU Zehua, 来源:中国科学:数学英文版 年份:2001
Let Un be the unit polydisc of Cn and =(1,…n) a holomorphicself-map of Un. As the main result of the paper, it shows that the composition operator Cφ is comp...
[期刊论文] 作者:Zhou Zehua,SHI Jihuai, 来源:中国科学A辑 年份:2004
Let Un be the unit polydisc of Cn and =(1,…n) a holomorphicself-map of Un. As the main result of the paper, it shows that the composition operator Cφ is comp...
[期刊论文] 作者:Zhou Zehua,Wei Zhongqi, 来源:自然科学进展 年份:2004
A characterization of a holomorphic function lying in the Nevanlinna class of the unit ball of C n is given. As its application, the boundedness and compactness...
[期刊论文] 作者:Zhou Zehua,ZENG Honggang, 来源:自然科学进展 年份:2004
Let Bn be the unit ball of C n and φ = ( φ1, …, φn) a holomorphic self-map of Bn. The main purpose of this paper is to discuss the boundedness and compactne...
[期刊论文] 作者:Zhou Zehua,CHE Renyu, 来源:中国科学A辑 年份:2004
In this paper we first look upon some known results on the composition operator as bounded or compact on the Bloch-type space in polydisk and ball, and then giv...
[期刊论文] 作者:ZHOU Zehua(周泽华), 来源:中国科学:数学英文版 年份:2003
Let Un be the unit polydisc of Cn and φ= (φ1,...,φn) a holomorphic self-map of Un. Let0 ≤α< 1. This paper shows that the composition operator Cφ is bounded...
[期刊论文] 作者:Zhou Zehua,Zhu Min,Shi Jihuai, 来源:数学物理学报(英文版) 年份:2004
Let Un be the unit polydisc of Cn and φ = (φ1,…,φn) a holomorphic self map of Un. This paper shows that the composition operator Cφ induced by φ is bounde...
[期刊论文] 作者:ZHANG Xin,WANG Zehua,ZHOU Zehua,XU Jianming, 来源:武汉理工大学学报(材料科学版)(英文版) 年份:2017
The influences of rare earth elements (cerium and lanthanum) on the microstructure and phases ofAl-3.0 wt%Mg alloys used for electromagnetic shielding wire were characterized by scanning electron microscopy (SEM),energy-dispersive spectrosco......
[期刊论文] 作者:张欣,王泽华,ZHOU Zehua,XU Jianming,, 来源:Journal of Wuhan University of Technology(Materials Science) 年份:2017
The influences of rare earth elements(cerium and lanthanum) on the microstructure and phases of Al-3.0 wt%Mg alloys used for electromagnetic shielding wire were...
[期刊论文] 作者:Wang Zehua,Zhao Weihua,Zhou Zehua,Jiang Shaoqun,Yu Xuru,Wang Qiuxin,, 来源:China Foundry 年份:2013
Casting defects could largely affect the mechanical properties of casting products. A number of test pieces made of ductile iron (EN-GJS-400-18-LT) with differe...
[期刊论文] 作者:WU Lintao,ZHOU Zehua,DEND Yong,ZHANG Xin,WANG Miqi,WANG Zehua,ZHANG Kaicheng,YANG Guangheng, 来源:武汉理工大学学报(材料科学版)(英文版) 年份:2021
The changes of the microstructure and the mechanical properties of FeCrMoCBY amorphous coatings prepared by plasma spraying after heat treatment were investigated. 300, 400, 500 and 600 ℃ were selected as the heat treatment temperature, an......
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