Methods of perturbation theory in the qualitative essential spectral analysis of differential operators
The qualitative properties of perturbed differential equations are investigated. The analogies of the classical Weyl theorem are proved. First Published Online: 14 Oct 2010
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
1998-12-01
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| Series: | Mathematical Modelling and Analysis |
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| Online Access: | https://journals.vgtu.lt/index.php/MMA/article/view/9991 |