Sufficiently high powers of hyponormal operators have rationally invariant subspaces

1978 ◽  
Vol 1 (3) ◽  
pp. 444-447 ◽  
Author(s):  
Charles A. Berger
2003 ◽  
Vol 32 (2) ◽  
pp. 445-450
Author(s):  
Muneo CHŌ ◽  
Tadasi HURUYA

1989 ◽  
pp. 91-114
Author(s):  
Mircea Martin ◽  
Mihai Putinar

2018 ◽  
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pp. 1460-1470
Author(s):  
M. H. M. Rashid

2001 ◽  
Vol 28 (6) ◽  
pp. 359-365
Author(s):  
Vasile Lauric

We make some remarks concerning the invariant subspace problem for hyponormal operators. In particular, we bring together various hypotheses that must hold for a hyponormal operator without nontrivial invariant subspaces, and we discuss the existence of such operators.


1987 ◽  
Vol 125 (1) ◽  
pp. 93 ◽  
Author(s):  
Scott W. Brown

2019 ◽  
Vol 15 (1) ◽  
pp. 122-130
Author(s):  
Laszlo Szekelyhidi ◽  
◽  
Seyyed Mohammad Tabatabaie ◽  
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Author(s):  
Heydar Radjavi ◽  
Peter Rosenthal
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