ACTA UNIVERSITATIS APULENSIS No 15/2008 CHARACTERIZATIONS OF NONNEGATIVE SELFADJOINT EXTENSIONS
نویسنده
چکیده
The set of all nonnegative selfadjoint extensions of a nonnegative linear relation (multi-valued operator) is described by using a partial order defined on the set of the corresponding quadratic forms. This characterization leads to a generalization of a result due to M.G. Krĕın. 2000 Mathematics Subject Classification: 47A06, 47A20, 47B25, 47A63.
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تاریخ انتشار 2008