J. L. Ullman
Impact in
- Applied Mathematics top 5%
- Mathematical functions and polynomials
- Holomorphic and Operator Theory
- Algebraic and Geometric Analysis
- Geometry and Topology top 5%
- Analytic and geometric function theory
- Geometric and Algebraic Topology
Papers in
-
- Mathematical functions and polynomials 12
- Functional Equations Stability Results 3
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- Mathematical Dynamics and Fractals 6
- Numerical methods in inverse problems 3
- Co-authors
- Roger C. Lyndon (3 shared papers)B. A. Taylor (1 shared paper)H. Alexander (1 shared paper)I. N. Baker (1 shared paper)James A. Deddens (1 shared paper)Вилмос Тотик (2 shared papers)Michael K. McCormack (1 shared paper)John M. Opitz (1 shared paper)
- Journals
- The Michigan Mathematical Journal (5 papers)Transactions of the American Mathematical Society (5 papers)Proceedings of the American Mathematical Society (3 papers)Bulletin of the American Mathematical Society (3 papers)Proceedings of the London Mathematical Society (2 papers)
- Partner nations
- United StatesMexicoUnited Kingdom
In The Last Decade
J. L. Ullman
25 papers receiving 217 citations
Peers
Comparison fields: 5 of 44
- Applied Mathematics 189
- Geometry and Topology 119
- Algebra and Number Theory 63
- Mathematical Physics 106
- Discrete Mathematics and Combinatorics 33
Countries citing papers authored by J. L. Ullman
This map shows the geographic impact of J. L. Ullman'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 J. L. Ullman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. L. Ullman more than expected).
Fields of papers citing papers by J. L. Ullman
This network shows the impact of papers produced by J. L. Ullman. 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 J. L. Ullman. The network helps show where J. L. Ullman may publish in the future.
Co-authors
The 10 scholars most cited alongside J. L. Ullman, 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 28 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 1969 | 47 | |
| 2 | 1972 | 44 | |
| 3 | 1972 | 35 | |
| 4 | 1959 | 27 | |
| 5 | 1980 | 24 | |
| 6 | 1968 | 23 | |
| 7 | 1967 | 18 | |
| 8 | 1974 | 17 | |
| 9 | 1966 | 13 | |
| 10 | 1972 | 9 | |
| 11 | 1960 | 9 | |
| 12 | 1986 | 8 | |
| 13 | 1986 | 7 | |
| 14 | 1982 | 6 | |
| 15 | 1952 | 6 | |
| 16 | 1971 | 5 | |
| 17 | 1994 | 4 | |
| 18 | 1951 | 3 | |
| 19 | 1953 | 3 | |
| 20 | 1967 | 3 |
About J. L. Ullman
J. L. Ullman is a scholar working on Applied Mathematics, Mathematical Physics, Geometry and Topology, Numerical Analysis and Computational Theory and Mathematics, having authored 28 papers that have together received 328 indexed citations. Recurring topics across this work include Mathematical functions and polynomials (12 papers), Mathematical Dynamics and Fractals (6 papers), Iterative Methods for Nonlinear Equations (4 papers), Mathematics and Applications (4 papers), Mathematical Approximation and Integration (3 papers), Numerical methods in inverse problems (3 papers), Functional Equations Stability Results (3 papers) and Analytic and geometric function theory (2 papers). The work is most often cited by research in Applied Mathematics (189 citations), Geometry and Topology (119 citations), Algebra and Number Theory (63 citations), Mathematical Physics (106 citations) and Discrete Mathematics and Combinatorics (33 citations). J. L. Ullman has collaborated with scholars based in United States, Mexico and United Kingdom. Frequent co-authors include Roger C. Lyndon, B. A. Taylor, H. Alexander, I. N. Baker, James A. Deddens, Вилмос Тотик, Michael K. McCormack, John M. Opitz, Alice Lazzarini and David K. Kahaner. Their work appears in journals such as The Michigan Mathematical Journal, Transactions of the American Mathematical Society, Proceedings of the American Mathematical Society, Bulletin of the American Mathematical Society and Proceedings of the London Mathematical Society.
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.