Concepedia

Anton Zettl

AZ

81

Publications

2.8K

Citations

31

H-Index

1965

Active since

Affiliations

Northern Illinois University(Current)

Inner Mongolia University

University of Birmingham

Tianjin University of Science and Technology

Anton Zettl is an author at Northern Illinois University specializing in functional analysis, spectral theory, and engineering.

Top concepts

Functional AnalysisSpectral TheoryEngineeringNumerical AnalysisApproximation TheoryVariational InequalitiesGeometryEconomic InequalityTheory Of ComputingComputer Engineering

Publications per year

1965–2017

81

Publications

81

Eigenvalues of Regular Sturm–Liouville Problems

Qingkai Kong, Anton Zettl · Journal of Differential Equations · 1996 · 155 citations

Spectral Theory, Potential Theory, Regular Sturm–liouville Problems

Algorithm 810: The SLEIGN2 Sturm-Liouville Code

Paul B. Bailey, W. N. Everitt, Anton Zettl · ACM Transactions on Mathematical Software · 2001 · 126 citations

Numerical Analysis, Spectral Theory, Original Sleign Code +12

Formally self-adjoint quasi-differential operators

Anton Zettl · Rocky Mountain Journal of Mathematics · 1975 · 111 citations · Full text

Linear Operator, Global Analysis, Self-adjoint Quasi-differential Operators +2

Dependence of the nth Sturm–Liouville Eigenvalue on the Problem

Qingkai Kong, Hongyou Wu, Anton Zettl · Journal of Differential Equations · 1999 · 107 citations

Spectral Theory, Nth Sturm–liouville Eigenvalue, Perturbation Method

Singular Sturm-Liouville Problems: The Friedrichs Extension and Comparison of Eigenvalues

Heinz‐Dieter Niessen, Anton Zettl · Proceedings of the London Mathematical Society · 1992 · 102 citations

Spectral Theory, Elliptic Equation, Elementary Transformation +12

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