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Found 100 Documents (Results 1–100)

Convergent quantum normal forms, \(\mathcal PT\)-symmetry and reality of the spectrum. (English) Zbl 1274.70025

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Schatten-von Neumann estimates for resolvent differences of Robin Laplacians on a half-space. (English) Zbl 1287.47038

Arendt, Wolfgang (ed.) et al., Spectral theory, mathematical system theory, evolution equations, differential and difference equations. Selected papers of 21st international workshop on operator theory and applications, IWOTA10, Berlin, Germany, July 12–16, 2010. Basel: Birkhäuser (ISBN 978-3-0348-0296-3/hbk; 978-3-0348-0297-0/ebook). Operator Theory: Advances and Applications 221, 453-468 (2012).
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The method of similar operators in the spectral analysis of non-self-adjoint Dirac operators with non-smooth potentials. (English. Russian original) Zbl 1219.47024

Izv. Math. 75, No. 3, 445-469 (2011); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 2011, No. 3, 3-28 (2011).
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On a class of nonselfadjoint periodic boundary value problems with discrete real spectrum. (English) Zbl 1259.47060

Levitin, Michael (ed.) et al., Operator theory and its applications. In memory of V. B. Lidskiĭ (1924–2008). Providence, RI: American Mathematical Society (AMS) (ISBN 978-0-8218-5272-9/hbk). Translations. Series 2. American Mathematical Society 231; Advances in the Mathematical Sciences 65, 59-66 (2010).
MSC:  47E05 34B24 76R99
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A functional model, eigenvalues, and finite singular critical points for indefinite Sturm-Liouville operators. (English) Zbl 1206.47040

Ball, Joseph A. (ed.) et al., Topics in operator theory. Volume 2: Systems and mathematical physics. Proceedings of the 19th international workshop on operator theory and applications (IWOTA), College of William and Mary, Williamsburg, VA, USA, July 22–26, 2008. A tribute to Israel Gohberg on the occasion of his 80th birthday. Basel: Birkhäuser (ISBN 978-3-0346-0160-3/hbk; 978-3-0346-0163-4/set; 978-3-0346-0161-0/ebook). Operator Theory: Advances and Applications 203, 247-287 (2010).
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On the eigenvalues of a non-selfadjoint second order difference operator. (English) Zbl 1172.39027

Bohner, Martin (ed.) et al., Difference equations and applications. Proceedings of the fourteenth international conference on difference equations and applications (ICDEA), Istanbul, Turkey, July 21–25, 2008. Istanbul: Bahçeşehir University Press (ISBN 978-975-6437-80-3/pbk). 179-186 (2009).
MSC:  39A70 39A12 34L05
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On Dirichlet-to-Neumann maps and some applications to modified Fredholm determinants. (English) Zbl 1169.47014

Janas, Jan (ed.) et al., Methods of spectral analysis in mathematical physics. Conference on operator theory, analysis and mathematical physics (OTAMP), Lund, Sweden, June 15–22, 2006. Basel: Birkhäuser (ISBN 978-3-7643-8754-9/hbk). Operator Theory: Advances and Applications 186, 191-215 (2009).
Reviewer: Josef Wloka (Kiel)
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Spectrum and pseudospectrum of non-self-adjoint Schrödinger operators with periodic coefficients. (English. Russian original) Zbl 1128.47042

Math. Notes 80, No. 3, 345-354 (2006); translation from Mat. Zametki 80, No. 3, 456-466 (2006).
MSC:  47E05 34L40 47A10
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Nonselfadjoint spectral operators and their application to control theory. (English) Zbl 0977.47025

Corduneanu, C. (ed.) et al., Volterra equations and applications. Proceedings of the Volterra centennial symposium, University of Texas, Arlington, TX, USA, May 23-25, 1996. London: Gordon and Breach Science Publishers. Stab. Control Theory Methods Appl. 10, 457-463 (2000).
MSC:  47B40 47A10 93B60
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Spectral theory of guided waves. Transl. from the Russian. (English) Zbl 0880.35121

Bristol: Institute of Physics Publishing. xix, 310 p. £100.00; $ 200.00 (1996).
MSC:  35Q72 35P05 35-02 78-02 74-02 47A10 47A75
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An inverse problem for a class of one-dimensional Schrödinger operators with a complex periodic potential. (English. Russian original) Zbl 0739.34022

Math. USSR, Izv. 37, No. 3, 611-629 (1991); translation from Izv. Akad. Nauk SSSR, Ser. Mat. 54, No. 6, 1252-1269 (1990).
MSC:  34A55 34L40 34B24
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On the spectrum and resolvent of non-selfadjoint multichannel systems with non-zero inner energies. (Russian) Zbl 0756.34081

Linear operators and their applications, Themat. Collect. Sci. Works, Baku, 26-31 (1989).
MSC:  34L05 34L30 34B15
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On completeness of the system of root subspaces of a higher order non- selfadjoint operator of the Schrödinger type. (Russian) Zbl 0792.47019

Gol’tser, Ya. M. (ed.), Studies on differential equations and their applications. Alma-Ata: Kazakhskij Pedagogicheskij Institut Im. Abaya, 22-26 (1989).
MSC:  47A70 47B25 47F05
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