Isometric and Unitary Toeplitz +Hankel operators

Release time:2026-03-09

Journal:Banach Journal of Mathematical Analysis(Accepted)

Abstract:We continue the study by the ffrst author on isometric and unitary Toeplitz + Hankel operators [22]. We give a complete description of the symbols of unitary (T+H)-operators. By factorizing a large class of isometric (T+H)-operators as products of Toeplitz operators and unitary (T+H)-operators, we ffnd the spectrum of these isometries. Explicit examples of isometric and unitary (T+H)-operators are presented to illustrate that these operators are interesting and are worthy of further investigation.

Co-author:Caixing Gu, Pan Ma, Baoen Song

Indexed by:Journal paper

Discipline:Natural Science

First-Level Discipline:Mathematics

Translation or Not:no

Date of Publication:2026-03-07

Included Journals:SCI