David Callan
Impact in
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- Advanced Combinatorial Mathematics
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- Advanced Mathematical Identities
- Analytic Number Theory Research
Papers in
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- Advanced Combinatorial Mathematics 26
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- semigroups and automata theory 16
- Graph Labeling and Dimension Problems 3
- Co-authors
- Toufik Mansour (16 shared papers)Mark Shattuck (5 shared papers)Emeric Deutsch (4 shared papers)Michael Golomb (2 shared papers)Shi-Mei Ma (1 shared paper)Qing-Hu Hou (1 shared paper)Roger S. Pinkham (2 shared papers)Roger B. Nelsen (1 shared paper)
- Journals
- The Electronic Journal of Combinatorics (4 papers)Discrete Mathematics (3 papers)Discrete Mathematics & Theoretical Computer Science (2 papers)Journal of Algebra (2 papers)American Mathematical Monthly (15 papers)
- Partner nations
- United StatesIsraelSouth Africa
In The Last Decade
David Callan
51 papers receiving 157 citations
Peers
Comparison fields: 5 of 32
- Discrete Mathematics and Combinatorics 123
- Algebra and Number Theory 63
- Theoretical Computer Science 6
- Geometry and Topology 38
- Computational Theory and Mathematics 65
Countries citing papers authored by David Callan
This map shows the geographic impact of David Callan'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 David Callan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites David Callan more than expected).
Fields of papers citing papers by David Callan
This network shows the impact of papers produced by David Callan. 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 David Callan. The network helps show where David Callan may publish in the future.
Co-authors
The 25 scholars most cited alongside David Callan, 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 64 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 1995 | 13 | |
| 2 | Some bijections and identities for the Catalan and Fine numbers. | 2005 | 12 |
| 3 | 1978 | 12 | |
| 4 | 2008 | 10 | |
| 5 | 1999 | 8 | |
| 6 | Counting Stabilized-Interval-Free Permutations | 2004 | 7 |
| 7 | 2007 | 6 | |
| 8 | 2008 | 6 | |
| 9 | 2017 | 6 | |
| 10 | A Combinatorial Derivation of the Number of Labeled Forests | 2003 | 5 |
| 11 | 2017 | 5 | |
| 12 | On Generating Functions Involving the Square Root of a Quadratic Polynomial | 2007 | 5 |
| 13 | 2017 | 4 | |
| 14 | 2017 | 4 | |
| 15 | 1992 | 4 | |
| 16 | 1998 | 4 | |
| 17 | 2014 | 3 | |
| 18 | 2015 | 3 | |
| 19 | 2017 | 3 | |
| 20 | 1976 | 3 |
About David Callan
David Callan is a scholar working on Discrete Mathematics and Combinatorics, Computational Theory and Mathematics, Electrical and Electronic Engineering, Artificial Intelligence and Mathematical Physics, having authored 64 papers that have together received 179 indexed citations. Recurring topics across this work include Advanced Combinatorial Mathematics (26 papers), semigroups and automata theory (16 papers), graph theory and CDMA systems (14 papers), Advanced Mathematical Identities (8 papers), Coding theory and cryptography (8 papers), Advanced Mathematical Theories (7 papers), Advanced Mathematical Theories and Applications (4 papers) and Graph Labeling and Dimension Problems (3 papers). The work is most often cited by research in Discrete Mathematics and Combinatorics (123 citations), Algebra and Number Theory (63 citations), Theoretical Computer Science (6 citations), Geometry and Topology (38 citations) and Computational Theory and Mathematics (65 citations). David Callan has collaborated with scholars based in United States, Israel and South Africa. Frequent co-authors include Toufik Mansour, Mark Shattuck, Emeric Deutsch, Michael Golomb, Shi-Mei Ma, Qing-Hu Hou, Roger S. Pinkham, Roger B. Nelsen, Helmut Prodinger and Albert A. Mullin. Their work appears in journals such as The Electronic Journal of Combinatorics, Discrete Mathematics, Discrete Mathematics & Theoretical Computer Science, Journal of Algebra and American Mathematical Monthly.
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.