Background for Functions of Selfadjoint Operators
In this introductory chapter we recall some fundamental facts concerning bounded selfadjoint operators on complex Hilbert spaces. As all the operators considered in this book are supposed to be bounded, we no longer mention this but understand it implicitly.
KeywordsHilbert Space Selfadjoint Operator Semicontinuous Function Complex Hilbert Space Order Preserve
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- 1.G. Helmberg, Introduction to Spectral Theory in Hilbert Space, John Wiley & Sons, Inc., New York, 1969.Google Scholar