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On linear-fractional relations and images of angular operators |
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| Authors: | Tomas Azizov Viktor Khatskevich and Valerii Senderov |
| Abstract: | For plus-operators in a Banach indefinite space, we consider a linear-fractional relation. The classes of operators with the empty domain of definition for such a relation are described. The sufficient (and necessary, in some meaning) conditions for the chain rule to be valid are given. |
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