| Publication | Date of Publication | Type |
|---|
| https://portal.mardi4nfdi.de/entity/Q5409274 | 2014-04-14 | Paper |
| Higher derivatives of spectral functions associated with one-dimensional Schrödinger operators. II. | 2013-07-24 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2786027 | 2010-09-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3602112 | 2009-02-12 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4661918 | 2005-03-30 | Paper |
| The spectral function for Sturm-Liouville problems where the potential is of Wigner-von Neumann type or slowly decaying | 2004-10-01 | Paper |
| Bounds for the points of spectral concentration of Sturm–Liouville problems | 2002-12-15 | Paper |
| On the recovery of a differential equation from its spectral functions | 2002-11-10 | Paper |
| Estimates for the periodic and semi-periodic eigenvalues of Hill's equation | 2002-01-07 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4944132 | 2002-01-06 | Paper |
| Connection formulae for spectral functions associated with singular Sturm–Liouville equations | 2000-09-19 | Paper |
| Eigenvalue approximations for linear periodic differential equations with a singularity | 2000-07-26 | Paper |
| The form of the spectral functions associated with Sturm-Liouville equations with large negative potential | 1999-02-17 | Paper |
| The form of the spectral functions associated with Sturm‐Liouville problems with continuous spectrum | 1998-04-06 | Paper |
| The asymptotic form of the Titchmarsh‐weylm‐function associated with a non‐definite, linear, second order differential equation | 1997-03-19 | Paper |
| On the Oscillation of Differential Equations with an Oscillatory Coefficient | 1995-08-21 | Paper |
| Asymptotics of eigenvalues for Sturm-Liouville problems with an interior singularity | 1995-08-15 | Paper |
| Asymptotics of eigenvalues for regular Sturm-Liouville problems | 1995-01-19 | Paper |
| A series representation for the Titchmarsh-Weyl \(m\)-function | 1993-04-01 | Paper |
| A note on the asymptotic series associated with a certain Titchmarsh-Weyl \(m\)-function | 1992-06-26 | Paper |
| ON AN OSCILLATION CRITERION OF COHN | 1992-06-25 | Paper |
| On an inequality of Lyapunov for disfocality | 1990-01-01 | Paper |
| A note on the order of magnitude of certain Titchmarsh-Weyl m-functions | 1990-01-01 | Paper |
| A note on a paper of Atkinson concerning the asymptotics of an eigenvalue problem with interior singularity | 1988-01-01 | Paper |
| An inverse problem involving the Titchmarsh–Weyl m-function | 1988-01-01 | Paper |
| The form of the spectral functions associated with a class of Sturm–Liouville equations with integrable coefficient | 1987-01-01 | Paper |
| An exact method for the calculation of certain Titchmarsh-Weyl m-functions | 1987-01-01 | Paper |
| On the asymptotic properties of linear differential equations | 1987-01-01 | Paper |
| The asymptotic form of the Titchmarsh-Weyl m-function for second-order linear differential equations with analytic coefficients | 1986-01-01 | Paper |
| Weighted means and oscillation conditions for second order matrix differential equations | 1986-01-01 | Paper |
| The asymptotic form of the Titchmarsh–Weyl m-function associated with a second order differential equation with locally integrable coefficient | 1986-01-01 | Paper |
| A property of the asymptotic series for a class of Titchmarsh–Weyl m-functions | 1986-01-01 | Paper |
| The Asymptotic Form of the Titchmarsh-Weyl m -Function Associated with a Dirac System | 1985-01-01 | Paper |
| The asymptotic form of the spectral functions associated with a class of Sturm–Liouville equations | 1985-01-01 | Paper |
| LIMIT-CIRCLE CRITERIA FOR SECOND-ORDER DIFFERENTIAL EXPRESSIONS | 1984-01-01 | Paper |
| Lower bounds for the spectrum of a second order linear differential equation with a coefficient whose negative part is p-integrable | 1984-01-01 | Paper |
| On the oscillation of solutions of linear differential equations | 1984-01-01 | Paper |
| THE ASYMPTOTIC FORM OF THE TITCHMARSH-WEYL m -FUNCTION | 1984-01-01 | Paper |
| Criteria for Sturm-Liouville equations to have continuous spectra | 1983-01-01 | Paper |
| On the Zeros of Solutions of Differential Equations | 1983-01-01 | Paper |
| On the Titchmarsh–Weyl m -function | 1983-01-01 | Paper |
| Bounds for the eigenvalues of separated Dirac operators | 1983-01-01 | Paper |
| Bounds for the Point Spectra of Sturm-Liouville Equations | 1982-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3662169 | 1981-01-01 | Paper |
| Bounds for the point spectra of separated Dirac operators | 1981-01-01 | Paper |
| On the spectrum of the periodic Dirac operator | 1981-01-01 | Paper |
| On the essential spectrum of self-adjoint operators | 1980-01-01 | Paper |
| On the Spectra and Stability of Periodic Differntial Equations | 1980-01-01 | Paper |
| Gaps in the Essential Spectra of Schrödinger and Dirac Operators | 1978-01-01 | Paper |
| A Systematic Method of Estimating Gaps in the Essential Spectrum of Self-Adjoint Operators | 1978-01-01 | Paper |
