Rainer Wittmann
Impact in
- Numerical Analysis top 2%
- Advanced Optimization Algorithms Research
- Geometry and Topology top 2%
- Fixed Point Theorems Analysis
Papers in
-
- Advanced Banach Space Theory 9
- Mathematical Dynamics and Fractals 3
- Spectral Theory in Mathematical Physics 2
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- Advanced Harmonic Analysis Research 4
- Co-authors
- Michael Lin (5 shared papers)Michael J. Klass (1 shared paper)André Adler (1 shared paper)Ulrich Krengel (1 shared paper)
- Journals
- Probability Theory and Related Fields (4 papers)Proceedings of the American Mathematical Society (4 papers)Israel Journal of Mathematics (3 papers)Transactions of the American Mathematical Society (2 papers)Mathematische Annalen (2 papers)
- Partner nations
- GermanyIsraelUnited States
In The Last Decade
Rainer Wittmann
27 papers receiving 506 citations
Rainer Wittmann's Hit Papers
Peers
Comparison fields: 5 of 34
- Numerical Analysis 359
- Geometry and Topology 371
- Computational Theory and Mathematics 456
- Mathematical Physics 116
- Applied Mathematics 74
Countries citing papers authored by Rainer Wittmann
This map shows the geographic impact of Rainer Wittmann'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 Rainer Wittmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Rainer Wittmann more than expected).
Fields of papers citing papers by Rainer Wittmann
This network shows the impact of papers produced by Rainer Wittmann. 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 Rainer Wittmann. The network helps show where Rainer Wittmann may publish in the future.
Co-authors
The 4 scholars most cited alongside Rainer Wittmann, 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 30 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Approximation of fixed points of nonexpansive mappings Hit paper breakdown → | 1992 | 439 |
| 2 | 1985 | 25 | |
| 3 | 1990 | 11 | |
| 4 | 1987 | 9 | |
| 5 | 1994 | 8 | |
| 6 | 1993 | 8 | |
| 7 | 1994 | 8 | |
| 8 | 1991 | 7 | |
| 9 | 1988 | 7 | |
| 10 | 1987 | 6 | |
| 11 | 1986 | 6 | |
| 12 | 1994 | 5 | |
| 13 | 1985 | 5 | |
| 14 | 1994 | 5 | |
| 15 | 1987 | 5 | |
| 16 | 1987 | 4 | |
| 17 | 1995 | 4 | |
| 18 | 1985 | 3 | |
| 19 | 1988 | 3 | |
| 20 | 1992 | 3 |
About Rainer Wittmann
Rainer Wittmann is a scholar working on Mathematical Physics, Applied Mathematics, Geometry and Topology, Computational Theory and Mathematics and Management Science and Operations Research, having authored 30 papers that have together received 585 indexed citations. Recurring topics across this work include Advanced Banach Space Theory (9 papers), Probability and Risk Models (5 papers), Advanced Harmonic Analysis Research (4 papers), Optimization and Variational Analysis (4 papers), Advanced Topology and Set Theory (4 papers), Fixed Point Theorems Analysis (3 papers), Mathematical Dynamics and Fractals (3 papers) and Spectral Theory in Mathematical Physics (2 papers). The work is most often cited by research in Numerical Analysis (359 citations), Geometry and Topology (371 citations), Computational Theory and Mathematics (456 citations), Mathematical Physics (116 citations) and Applied Mathematics (74 citations). Rainer Wittmann has collaborated with scholars based in Germany, Israel and United States. Frequent co-authors include Michael Lin, Michael J. Klass, André Adler and Ulrich Krengel. Their work appears in journals such as Probability Theory and Related Fields, Proceedings of the American Mathematical Society, Israel Journal of Mathematics, Transactions of the American Mathematical Society and Mathematische Annalen.
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.