Title of article
A multiplicative property characterizes quasinormal composition operators in -spaces
Author/Authors
Budzy?ski، نويسنده , , Piotr G. Jablonski، نويسنده , , Zenon Jan and Jung، نويسنده , , Il Bong and Stochel، نويسنده , , Jan، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2014
Pages
6
From page
576
To page
581
Abstract
A densely defined composition operator in an L 2 -space induced by a measurable transformation ϕ is shown to be quasinormal if and only if the Radon–Nikodym derivatives h ϕ n attached to powers ϕ n of ϕ have the multiplicative property: h ϕ n = h ϕ n almost everywhere for n = 0 , 1 , 2 , … .
Keywords
composition operator , Quasinormal operator
Journal title
Journal of Mathematical Analysis and Applications
Serial Year
2014
Journal title
Journal of Mathematical Analysis and Applications
Record number
1563986
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