从Zygmund型空间到空间的加权复合算子

2015-10-14 05:28郭洁婷谭海鸥
关键词:硕士生海鸥算子

郭洁婷,谭海鸥



郭洁婷,谭海鸥

(五邑大学 数学与计算科学学院,广东 江门 529020)

令,分别是复平面上的单位开圆盘中的解析自映射和解析函数. 加权复合算子定义为,,讨论了该加权复合算子从Zygmund型空间到-Bloch空间的有界性.

加权复合算子;-Bloch空间;Zygmund型空间;有界性

1 预备知识

Bloch型空间到其他全纯函数空间的复合算子与加权复合算子的研究成果详见文献[5-12],关于Zygmund空间上的复合算子的有界性的一些特征见文献[13-15]. 本文主要研究从Zygmund型空间到空间的加权复合算子的有界性,可看作是对文献[16-17]中结果的推广.

2 主要结果

首先给出有用的引理.

引理1[18]若,则

由式(6)和式(10),有:

由式(8)、式(11)和式(12),得证.

由式(8)、式(14)和式(15),得证.

由式(6)、式(8)、式(17)和式(18),得证.

[1] ZHU Kehe. Operator Theory in Functions Spaces [M]. New York: Springer, 1990.

[2] COWEN C C, MACCLUER B D. Composition Operator on Spaces of Analytic Functions [M]. Boca Rat on: CRC Press, 1995.

[4] LI Songxiao, STEVIC S. Volterra type operators on Zygmund space [J]. J Inequal Appl, 2007(1): 1-10.

[5] OHNO S, STROETHOFF K, ZHAO Ruhan. Weighted composition operators between Bloch-type spaces [J]. Rocky Mountain J Math, 2003, 33(1): 191-215.

[6] OHNO S. Weighted composition operators betweenand the Bloch space [J]. Taiwanese J Math, 2001, 5(3): 555-563.

[7] ZHU Xiangling. Generalized weighted composition operators from Bloch-type spaces to weighted Bergman spaces [J]. Indian J Math, 2007, 49(2): 139-149.

[8] FU Xiaohong, ZHU Xiangling. Weighted composition operators on some weighted spaces in the unit ball [J]. Abstr Appl Anal, 2008(2): 1-8.

[9] LI Songxiao, STEVIC S. Weighted composition operators from Bergman-type spaces into Bloch spaces [J]. Proc Indian Acad Sci Math Sci, 2007, 117(3): 371-385.

[10] LI Songxiao, STEVIC S. Weighted composition operators fromto the Bloch space on the polydisk [J]. Abstr Appl Anal, 2007, 2007: 1-13.

[11] STEVIC S. Norm of weighted composition operators from Bloch space toon the unit ball [J]. Ars Combin, 2008, 88: 125-127.

[12] ZHU Xiangling. Weighted composition operators betweenand Bergman type spaces [J]. Commun Korean Math Soc, 2006, 21(4): 719-727.

[13] CHOE B, KOO H, SMITH W. Composition operators on small spaces [J]. Integr Equat Oper Th, 2006, 56(3): 357-380.

[14] MADIGAN K, MATHESON A. Compact composition operators on the Bloch spaces [J]. TransAmer Math Soc, 1995, 347(7): 2679-2687.

[15] LI Songxiao, STEVIC S. Weighted composition operators from Zygmund spaces into Bloch spaces [J]. Applied Mathematics and Computation, 2008, 36(2): 825-831.

[16] 邹堃,谭海鸥. 从Zygmund空间到Bloch-type空间的加权复合算子[J]. 青岛理工大学学报,2010, 31(5): 105-108.

[17] SANATPOUR A H, HASSANLOU M. Essential norms of weighted composition operators between Zygmund-type spaces and Bloch-type spaces [J]. Turkish Journal of Mathematics, 2014, 38: 872-882.

[18] ESMARILI K, LINDSTORM M. Weighted composition operators between Zygmund type spaces and their essential norms [J]. Integr Equ Oper Teory, 2013, 75(4): 473-490.

[责任编辑:熊玉涛]

Weighted Composition Operators from Zygmund Type Spaces intoSpaces

GUOJie-ting, TANHai-ou

(School of Mathematics and Computational Science, Wuyi University, Jiangmen 529020, China)

Letbe an analytic self-map andbe a fixed analytic function in the open unit diskon the complex plane. The weighted composition operator is defined by,. This paper studies the boundedness of the weighted composition operators from Zygmund type spaces to-Bloch spaces.

weighted composition operators;-Bloch spaces; Zygmund type space; boundedness

1006-7302(2015)02-0006-06

O174.5

A

2014-12-03

郭洁婷(1989—),女,广东鹤山人,在读硕士生,研究方向为复分析;谭海鸥,教授,硕士,硕士生导师,通信作者,研究方向为复分析.

猜你喜欢
硕士生海鸥算子
我国2021年在学研究生规模达333万人
与由分数阶Laplace算子生成的热半群相关的微分变换算子的有界性
霸道海鸥谁能治
拟微分算子在Hp(ω)上的有界性
Heisenberg群上与Schrödinger算子相关的Riesz变换在Hardy空间上的有界性
“海鸥”展翅 “美好”起飞
各向异性次Laplace算子和拟p-次Laplace算子的Picone恒等式及其应用
赵燕磊
社会资本视角下女硕士生就业状况研究
海鸥为什么追着轮船飞