Open AccessComposition operator induced by ?(z) = sz + t for which |s|?1, |t|<1 and |s|+|t|?1
Author(s) -
Samira Naji Kadhim
Publication year - 2010
Publication title -
mağallaẗ baġdād li-l-ʿulūm
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.167
H-Index - 6
eISSN - 2411-7986
pISSN - 2078-8665
DOI - 10.21123/bsj.7.3.1266-1269
Subject(s) - operator (biology) , mathematics , composition operator , combinatorics , characterization (materials science) , composition (language) , unit (ring theory) , discrete mathematics , chemistry , physics , finite rank operator , biochemistry , banach space , philosophy , optics , linguistics , mathematics education , repressor , transcription factor , gene
We study in this paper the composition operator that is induced by ?(z) = sz + t. We give a characterization of the adjoint of composiotion operators generated by self-maps of the unit ball of form ?(z) = sz + t for which |s|?1, |t|