Self-Adjoint Extensions with Friedrichs Lower Bound

被引:0
作者
Matteo Gallone
Alessandro Michelangeli
机构
[1] Università degli Studi di Milano,Dipartimento di Matematica
[2] University of Bonn,Institute for Applied Mathematics, and Hausdorff Center for Mathematics
来源
Complex Analysis and Operator Theory | 2020年 / 14卷
关键词
Lower semi-bounded symmetric operators; Self-adjoint extensions; Friedrichs extensions; 47B15; 47B25; 47N50; 81Q10;
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中图分类号
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摘要
We produce a simple criterion and a constructive recipe to identify those self-adjoint extensions of a lower semi-bounded symmetric operator on Hilbert space which have the same lower bound as the Friedrichs extension. Applications of this abstract result to a few instructive examples are then discussed.
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