scientific article; zbMATH DE number 836632
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Publication:4861748
zbMath0838.47006MaRDI QIDQ4861748
Publication date: 30 May 1996
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
spectral properties of selfadjoint operatorssum of two selfadjoint operators in two different spaces
Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25)
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