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- Kurasov, PavelLund University,Lunds universitet,Matematik LTH,Matematikcentrum,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematics (Faculty of Engineering),Centre for Mathematical Sciences,Departments at LTH,Faculty of Engineering, LTH (author)
Essential spectrum due to singularity
- Article/chapterEnglish2003
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- 2003
- Springer Science and Business Media LLC,2003
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- LIBRIS-ID:oai:lup.lub.lu.se:5d1ba2d1-4f8b-4a5e-8acf-7ff5254bac83
- https://lup.lub.lu.se/record/302226URI
- https://doi.org/10.2991/jnmp.2003.10.s1.7DOI
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- Language:English
- Summary in:English
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- It is proven that the essential spectrum of any self-adjoint operator associated with the matrix differential expression [GRAPHICS] consists of two branches. One of these branches (called regularity spectrum) can be obtained by approximating the operator by regular operators (with coefficients which are bounded near the origin), the second branch (called singularity spectrum) appears due to singularity of the coefficients.
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- NATURVETENSKAP Matematik hsv//swe
- NATURAL SCIENCES Mathematics hsv//eng
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- Naboko, S (author)
- Matematik LTHMatematikcentrum (creator_code:org_t)
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- In:Journal of Nonlinear Mathematical Physics: Springer Science and Business Media LLC10, s. 93-1061402-92511776-0852
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