Hyponormal Operators with Thick Spectra have Invariant Subspaces

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


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

Author(s):  
Heydar Radjavi ◽  
Peter Rosenthal
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document