Maps preserving some spectral domains of skew products of operators

Author(s):  
Y. Bouramdane ◽  
M. Ech-Chérif El Kettani
Keyword(s):  
2009 ◽  
Vol 15 (1) ◽  
pp. 53-69
Author(s):  
Franz Hofbauer ◽  
Peter Maličký ◽  
L'ubomír Snoha

2019 ◽  
Vol 147 (5) ◽  
pp. 2033-2043
Author(s):  
Matthew Litman ◽  
Zhiren Wang
Keyword(s):  

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