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On $\mu$-scale invariant operators


Abstract

We introduce the concept of a $\mu$-scale invariant operator with respect to a unitary transformation in a separable complex Hilbert space. We show that if a nonnegative densely defined symmetric operator is $\mu$-scale invariant for some $\mu>0$, then both the Friedrichs and the Krein-von Neumann extensions of this operator are also $\mu$-scale invariant.


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Article Information

TitleOn $\mu$-scale invariant operators
SourceMethods Funct. Anal. Topology, Vol. 13 (2007), no. 2, 181-186
MathSciNet   MR2336720
CopyrightThe Author(s) 2007 (CC BY-SA)

Authors Information

K. A. Makarov
Department of Mathematics, University of Missouri, Columbia, MO 65211, USA

E. Tsekanovskii
Department of Mathematics, Niagara University, NY 14109, USA 


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Citation Example

K. A. Makarov and E. Tsekanovskii, On $\mu$-scale invariant operators, Methods Funct. Anal. Topology 13 (2007), no. 2, 181-186.


BibTex

@article {MFAT416,
    AUTHOR = {Makarov, K. A. and Tsekanovskii, E.},
     TITLE = {On $\mu$-scale invariant operators},
   JOURNAL = {Methods Funct. Anal. Topology},
  FJOURNAL = {Methods of Functional Analysis and Topology},
    VOLUME = {13},
      YEAR = {2007},
    NUMBER = {2},
     PAGES = {181-186},
      ISSN = {1029-3531},
  MRNUMBER = {MR2336720},
       URL = {http://mfat.imath.kiev.ua/article/?id=416},
}


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