@inbook{74d069975e4248e4b8f16013e4476b89,
title = "Generalized Friedrichs Extensions Associated with Interface Conditions for Sturm-Liouville Operators",
abstract = "For a class of Sturm-Liouville operators with an interface condition at an interior point all selfadjoint realizations are determined. This result is obtained via a description of the selfadjoint extensions of the coupling of two symmetric operators. The (generalized) Friedrichs extension, when it exists, is determined. Sufficient conditions for the (generalized) Friedrichs extension to exist are given.",
keywords = "interface condition, Weyl function, boundary triplet, (generalized) Friedrichs extension, selfadjoint extension, symmetric operator",
author = "Andreas Fleige and Seppo Hassi and {de Snoo}, Henk and Henrik Winkler",
note = "Relation: http://www.rug.nl/informatica/organisatie/overorganisatie/iwi Rights: University of Groningen, Research Institute for Mathematics and Computing Science (IWI)",
year = "2005",
doi = "10.1007/3-7643-7516-7_6",
language = "English",
isbn = "978-3-7643-7515-7",
volume = "163",
series = "Operator Theory: Advances and Applications ",
publisher = "Birkhauser",
pages = "135--145",
booktitle = "Operator Theory and Indefinite Inner Product Spaces",
}