Isometric and Unitary Toeplitz +Hankel operators
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Release time:2026-03-09 Journal:Banach Journal of Mathematical Analysis 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 Document Type:J Volume:20(2026) Page Number:article number 24 Translation or Not:no Included Journals:SCI Links to published journals:https://link.springer.com/article/10.1007/s43037-026-00489-y -
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