Article ID Journal Published Year Pages File Type
5778846 Indagationes Mathematicae 2017 37 Pages PDF
Abstract
The extremal maximal sectorial extensions of a not necessarily densely defined sectorial relation (multivalued linear operator) in a Hilbert space are characterized in terms of a construction which goes back to Sebestyén and Stochel. In particular the two extreme maximal sectorial extensions, namely the Friedrichs extension and the KreÄ­n extension, are characterized. For this purpose a survey is given of the connection between closed sectorial forms and maximal sectorial relations.
Related Topics
Physical Sciences and Engineering Mathematics Mathematics (General)
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