Geodesic
Compact inverses of multipoint normal differential operators for first order
Electronic journal of differential equations, Tome 2011 (2011)
In this work, we describe all normal extensions of a multipoint minimal operators generated by linear multipoint differential-operator expressions for first order in the Hilbert space of vector functions, in terms of boundary values at the endpoints of infinitely many separated subintervals. Also we investigate compactness properties of the inverses of such extensions.
Classification : 47A05, 47A20
Keywords: direct sum of Hilbert spaces and operators, extension, multipoint selfadjoint operator, formally normal operator, normal operator 
@article{EJDE_2011__2011__a85,
     author = {Ismailov,  Zameddin I. and Otkun Cevik,  Elif and Unluyol,  Erdal},
     title = {Compact inverses of multipoint normal differential operators for first order},
     journal = {Electronic journal of differential equations},
     year = {2011},
     volume = {2011},
     zbl = {1233.47037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a85/}
}
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AU  - Unluyol,  Erdal
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%A Unluyol,  Erdal
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%J Electronic journal of differential equations
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%G en
%F EJDE_2011__2011__a85
Ismailov,  Zameddin I.; Otkun Cevik,  Elif; Unluyol,  Erdal. Compact inverses of multipoint normal differential operators for first order. Electronic journal of differential equations, Tome 2011 (2011). http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a85/