Access the full text.
Sign up today, get DeepDyve free for 14 days.
(1951)
Translated under the title: Teoriya dzeta-funktsii Rimana
(1953)
Translated under the title: Vysshie transtsendentnye funktsii. T. 2. Funktsii Besselya, funktsii parabolicheskogo tsilindra, ortogonal'nye mnogochleny
(1995)
Asymptotic behavior of the spectrum and the regularized trace of higher-order singular differential operators
(1988)
Operatory Shturma–Liuvillya i Diraka (Sturm–Liouville and Dirac Operators)
Kh. Ishkin (2016)
Localization criterion for the spectrum of the Sturm–Liouville operator on a curveSt Petersburg Mathematical Journal, 28
Kh. Ishkin (2013)
On a trivial monodromy criterion for the Sturm-Liouville equationMathematical Notes, 94
Kh. Ishkin (2008)
On the uniqueness criterion for solutions of the Sturm-Liouville equationMathematical Notes, 84
(1978)
Spetsial’nye funktsii matematicheskoi fiziki (Special Functions of Mathematical Physics)
Kh. Ishkin (2005)
Necessary Conditions for the Localization of the Spectrum of the Sturm-Liouville Problem on a CurveMathematical Notes, 78
E. Titchmarsh, D. Heath-Brown (1987)
The Theory of the Riemann Zeta-Function
(1953)
One simple identity for the eigenvalues of a second-order differential operator, Dokl
Kh. Ishkin (2008)
On localization of the spectrum of the problem with complex weightJournal of Mathematical Sciences, 150
(1978)
Teoriya analiticheskikh funktsii
(1953)
On one Gel’fand–Levitan formula, Usp
For a Sturm–Liouville operator on a piecewise smooth curve, we study the effect that thespectrum of a nonintegrable singularity of the potential on the segment joining the endpoints ofthis curve has on the operator asymptotics. It is shown that in the case where the singular pointdoes not give rise to the branching of solutions in its neighborhood (the case of trivialmonodromy), the spectral asymptotics and the formula for the regularized trace look the same asfor the classical Sturm–Liouville operator on a segment with smooth potential. Further, it isshown that in the case of nontrivial monodromy the spectral asymptotics substantially depends onthe commensurability of the parts into which the segment is partitioned by the singular point\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\theta$$\end{document}: if \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\theta$$\end{document} is rational, then the spectrum is divided intofinitely many series, each going to infinity along “its own” parabola. In this case, the regularizedtrace formula is significantly more complicated and does not show any similarity with the classicalformula.
Differential Equations – Springer Journals
Published: Oct 13, 2020
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.