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author:

刘名生 (刘名生.) [1] | 朱玉灿 (朱玉灿.) [2]

Abstract:

假定X是具有范数‖·‖的复Banach空间,n是一个满足dim X≥n≥2的正整数.本文考虑由下式定义的推广的Roper-Suffridge算子Фn,β2,γ2……β(n+1),γ(n+1)(f):Фn,β2,γ2……β(n+1),γ(n+1)(fx)=∑n(j=1)(f(x*1(x))/(x*1(x)))βj(f''(x*1(x)))γjx*j(x)xj+(f(x*1(x))/(x*1(x)))β(n+1)(f''(x*1(x)))γ(n+1)(x-∑n(j=1)x*j(x)xj),其中x∈Ωp1,p2 ……p(n+1),β1=1,γ1=0和Ωp1,p2 ……p(n+1)={x∈X:∑n(j=1)|x*j(x)|pj+‖x-∑n(j=1)x*j(x)xj‖p(n+1)<1},这里pj>1 (j=1,2,……,n+1),线性无关族{x1,x2,……,xn}?X与{x*1,x*2,……,x*n} X*满足x*j(xj)=‖xj‖=1(j=1,2,……,n)和x*j(xk)=0(j≠k),我们选取幂函数的单值分支满足(f(ξ)/ξ)βj|(ξ=0)=1和(f''(ξ))γj|(ξ=0)=1,j=2,……,n+1.本文将证明:对某些合适的常数βj,γj,算子Фn,β2,γ2……β(n+1),γ(n+1)(f)在ΩP1,P2,……P(n+1),上保持α阶的殆β型螺形映照和α阶的β型螺形映照.

Keyword:

α阶的β型螺形映照 α阶的殆β型螺形映照 双全纯星形映照 推广的Roper-Suffridge算子

Community:

  • [ 1 ] [刘名生]华南师范大学
  • [ 2 ] [朱玉灿]福州大学

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Source :

中国科学A辑

ISSN: 1006-9232

Year: 2010

Issue: 3

Volume: 40

Page: 265-278

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 1

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