Klaus Schittkowski
Impact in
- Numerical Analysis top 0.2%
- Advanced Optimization Algorithms Research
- Iterative Methods for Nonlinear Equations
- Computational Theory and Mathematics top 0.1%
- Advanced Multi-Objective Optimization Algorithms
- Optimization and Variational Analysis
- Matrix Theory and Algorithms
Papers in
-
- Advanced Optimization Algorithms Research 26
- Numerical methods for differential equations 11
- Iterative Methods for Nonlinear Equations 5
-
- Optimization and Variational Analysis 6
- Matrix Theory and Algorithms 5
- Advanced Multi-Objective Optimization Algorithms 5
- Co-authors
- Willi Hock (3 shared papers)William W. Hager (1 shared paper)Yu‐Hong Dai (1 shared paper)Hongchao Zhang (1 shared paper)Hans P. Merkle (1 shared paper)Thomas Lehmann (1 shared paper)Josef Stoer (1 shared paper)Jorge C. Oliveira (1 shared paper)
- Journals
- Numerische Mathematik (4 papers)Annals of Operations Research (3 papers)Optimization Letters (3 papers)Optimization methods & software (3 papers)IMA Journal of Numerical Analysis (2 papers)
- Partner nations
- GermanySwitzerlandChina
In The Last Decade
Klaus Schittkowski
54 papers receiving 4.4k citations
Klaus Schittkowski's Hit Papers
Peers
Comparison fields: 5 of 161
- Numerical Analysis 1.7k
- Computational Theory and Mathematics 1.8k
- Statistics, Probability and Uncertainty 438
- Control and Systems Engineering 1.1k
- Computational Mechanics 649
Countries citing papers authored by Klaus Schittkowski
This map shows the geographic impact of Klaus Schittkowski's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Klaus Schittkowski with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Klaus Schittkowski more than expected).
Fields of papers citing papers by Klaus Schittkowski
This network shows the impact of papers produced by Klaus Schittkowski. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Klaus Schittkowski. The network helps show where Klaus Schittkowski may publish in the future.
Co-authors
The 18 scholars most cited alongside Klaus Schittkowski, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 55 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | NLPQL: A fortran subroutine solving constrained nonlinear programming problems Hit paper breakdown → | 1986 | 887 |
| 2 | More Test Examples for Nonlinear Programming Codes Hit paper breakdown → | 1987 | 870 |
| 3 | NLPQL: A fortran subroutine solving constrained nonlinear programming problems Hit paper breakdown → | 1986 | 601 |
| 4 | 1981 | 482 | |
| 5 | 1980 | 221 | |
| 6 | 1982 | 183 | |
| 7 | 1983 | 157 | |
| 8 | 2006 | 141 | |
| 9 | 1983 | 124 | |
| 10 | 1980 | 124 | |
| 11 | 2002 | 112 | |
| 12 | 1994 | 85 | |
| 13 | 2006 | 85 | |
| 14 | 1985 | 76 | |
| 15 | 2002 | 72 | |
| 16 | 1980 | 56 | |
| 17 | 1982 | 46 | |
| 18 | 2007 | 46 | |
| 19 | 2000 | 42 | |
| 20 | Numerical Data Fitting in Dynamical Systems: A Practical Introduction with Applications and Software | 2013 | 42 |
About Klaus Schittkowski
Klaus Schittkowski is a scholar working on Numerical Analysis, Computational Theory and Mathematics, Computational Mechanics, Control and Systems Engineering and Artificial Intelligence, having authored 55 papers that have together received 4.8k indexed citations. Recurring topics across this work include Advanced Optimization Algorithms Research (26 papers), Numerical methods for differential equations (11 papers), Advanced Control Systems Optimization (7 papers), Optimization and Variational Analysis (6 papers), Metaheuristic Optimization Algorithms Research (6 papers), Iterative Methods for Nonlinear Equations (5 papers), Matrix Theory and Algorithms (5 papers) and Advanced Multi-Objective Optimization Algorithms (5 papers). The work is most often cited by research in Numerical Analysis (1.7k citations), Computational Theory and Mathematics (1.8k citations), Statistics, Probability and Uncertainty (438 citations), Control and Systems Engineering (1.1k citations) and Computational Mechanics (649 citations). Klaus Schittkowski has collaborated with scholars based in Germany, Switzerland and China. Frequent co-authors include Willi Hock, William W. Hager, Yu‐Hong Dai, Hongchao Zhang, Hans P. Merkle, Thomas Lehmann, Josef Stoer, Jorge C. Oliveira, Jesús M. Frías and Markus Blatt. Their work appears in journals such as Numerische Mathematik, Annals of Operations Research, Optimization Letters, Optimization methods & software and IMA Journal of Numerical Analysis.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.