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On the square root of a positive selfadjoint operator |
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| Authors: | Zoltán Sebestyén Zsigmond Tarcsay |
| Affiliation: | 1.Department of Applied Analysis,E?tv?s L. University,Budapest,Hungary |
| Abstract: | We provide a short, elementary proof of the existence and uniqueness of the square root in the context of unbounded positive selfadjoint operators on real or complex Hilbert spaces. |
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