Perturbations of Semi-Fredholm Operators in Locally Convex Spaces

2020 ◽  
pp. 233-304
Author(s):  
Reinhard Mennicken
Keyword(s):  
Locally Convex Spaces ◽  
Fredholm Operators ◽  
Locally Convex ◽  
Convex Spaces

Perturbations by operators converging compactly to zero

1977 ◽  
Vol 81 (3) ◽  
pp. 387-391
Author(s):  
Eric Martens
Keyword(s):  
Locally Convex Spaces ◽  
Fredholm Operators ◽  
Locally Convex ◽  
Convex Spaces

AbstractThis paper considers perturbations in locally convex spaces of semi Fredholm operators T by a sequence of operators {Kn} converging compactly to zero in a sense extending that from (2). It is shown that, under suitable conditions, α(T + Kn) ≤ α(T), β(T + Kn) ≤ β;(T) and κ(T + Kn) = κ(T) for large n.

scholarly journals A characterization of Pontryagin–van Kampen duality for locally convex spaces

2002 ◽  
Vol 121 (1-2) ◽  
pp. 75-89 ◽  
Author(s):  
Fernando Garibay Bonales ◽  
F.Javier Trigos-Arrieta ◽  
Rigoberto Vera Mendoza
Keyword(s):  
Locally Convex Spaces ◽  
Locally Convex ◽  
Convex Spaces
Sign in / Sign up

Export Citation Format

Share Document