논문KCI 등재
ON THE NORM ATTAINING OPERATORS
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In this paper, we show the norm attaining paranormal operators have a nontrivial invariant subspace. Also, we show the norm attaining quadratically hyponormal weighted shift is subnormal.
Abstract
In this paper, we show the norm attaining paranormal operators have a nontrivial invariant subspace. Also, we show the norm attaining quadratically hyponormal weighted shift is subnormal.
참고문헌 (16)
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관련 논문AI추천
Weakly subnormal weighted shifts need not be 2-hyponormal이전익강원경기수학회 · 한국수학논문집2015 · 제23권 제1호A STUDY ON OPERATORS SATISFYING |T^2| ≥ |T^∗|^2이재원, 전인호강원경기수학회 · 한국수학논문집2011 · 제19권 제1호A note on cubically hyponormal weighted shifts이미령, Chunji Li, Muneo Cho대한수학회 · 대한수학회보2014 · 제51권 제4호The Flatness Property of Local-cubically Hyponormal Weighted Shifts백승환, 이미령, Chunji Li, Hyinjin DO경북대학교 자연과학대학 수학과 · Kyungpook Mathematical Journal2019 · 제59권 제2호On the Flatness of Semi-Cubically Hyponormal Weighted Shifts안지혜, 이춘길경북대학교 자연과학대학 수학과 · Kyungpook Mathematical Journal2008 · 제48권 제4호Structural and spectral properties of $k$-quasi-$*$-paranormal operatorsFei Zuo, Hongliang Zuo강원경기수학회 · 한국수학논문집2015 · 제23권 제2호
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