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On the approximation of isolated eigenvalues of ordinary differential operators |
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| Authors: | Gerald Teschl |
| Institution: | Faculty of Mathematics, Nordbergstrasse 15, 1090 Wien, Austria; and International Erwin Schrödinger Institute for Mathematical Physics, Boltzmanngasse 9, 1090 Wien, Austria |
| Abstract: | We extend a result of Stolz and Weidmann on the approximation of isolated eigenvalues of singular Sturm-Liouville and Dirac operators by the eigenvalues of regular operators. |
| Keywords: | Sturm--Liouville operators Dirac operators eigenvalues |
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