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Publications by Heinz Langer

Transfer Functions and Local Spectral Uniqueness for Sturm-Liouville Operators, Canonical Systems and Strings

Integral Equations and Operator Theory

English

On Generalized Resolvents andQ-functions of Symmetric Linear Relations (Subspaces) in Hilbert Space

Pacific Journal of Mathematics

English

Related publications

Sturm–Liouville Operator Functions

Dissertationes Mathematicae

English

Comparison and Oscillation Theorems for Singular Sturm-Liouville Operators

Opuscula Mathematica

English

Spectral Bounds for Indefinite Singular Sturm–Liouville Operators With Uniformly Locally Integrable Potentials

Journal of Differential Equations

Applied Mathematics

English

Inverse Problems for a Class of Sturm-Liouville Operators With the Mixed Spectral Data

Operators and Matrices

English

On Impulsive Sturm–Liouville Operators With Coulomb Potential and Spectral Parameter Linearly Contained in Boundary Conditions

Ukrainian Mathematical Journal

English

Finite-Difference Methods and the Eigenvalue Problem for Nonselfadjoint Sturm-Liouville Operators

Mathematics of Computation

Computational Mathematics

Applied Mathematics

English

Symmetry in Nonselfadjoint Sturm-Liouville Systems

Bulletin of the American Mathematical Society

English

Jordan Operators in Infinite Dimensions and Sturm Liouville Conjugate Point Theory

Bulletin of the American Mathematical Society

English

Inverse Problems for Sturm-Liouville Operators on Graphs With a Cycle

Operators and Matrices

English