David Callan
- Discrete Mathematics and Combinatorics top 5%
- Computational Theory and Mathematics top 10%
- Algebra and Number Theory
- Geometry and Topology top 10%
- Artificial Intelligence
- Co-authors
- Toufik MansourMark ShattuckEmeric DeutschHelmut ProdingerShi-Mei MaSabin CautisMichael GolombAlbert A. Mullin
- Topics
- Advanced Combinatorial Mathematics (25 papers)semigroups and automata theory (14 papers)graph theory and CDMA systems (12 papers)
- Cited by
- Discrete Mathematics and CombinatoricsAlgebra and Number TheoryTheoretical Computer Science
- Journals
- SHILAP Revista de lepidopterologíaThe Journal of PediatricsAmerican Mathematical Monthly
- Partner nations
- United StatesIsraelSouth Africa
In The Last Decade
David Callan
49 papers receiving 154 citations
Peers
Comparison fields: 5 of 31
- Discrete Mathematics and Combinatorics 122
- Computational Theory and Mathematics 65
- Algebra and Number Theory 62
- Geometry and Topology 38
- Artificial Intelligence 37
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-authorship network of co-authors of David Callan
This figure shows the co-authorship network connecting the top 25 collaborators of David Callan. A scholar is included among the top collaborators of David Callan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with David Callan. David Callan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 3 | |
| 3 | 0 | |
| 4 | 2 | |
| 5 | 0 | |
| 6 | 5 | |
| 7 | 4 | |
| 8 | 3 | |
| 9 | 4 | |
| 10 | 1 | |
| 11 | 3 | |
| 12 | 1 | |
| 13 | 2 | |
| 14 | 6 | |
| 15 | Some bijections and identities for the Catalan and Fine numbers. | 12 |
| 16 | Bijections from restricted Dyck paths to Motzkin paths | 1 |
| 17 | A Combinatorial Derivation of the Number of Labeled Forests | 5 |
| 18 | 3 | |
| 19 | 1 | |
| 20 | 3 |
About David Callan
David Callan is a scholar working on Discrete Mathematics and Combinatorics, Algebra and Number Theory and Computational Theory and Mathematics, having authored 60 papers that have together received 175 indexed citations. Recurring topics across this work include Advanced Combinatorial Mathematics (25 papers), semigroups and automata theory (14 papers) and graph theory and CDMA systems (12 papers). The work is most often cited by research in Discrete Mathematics and Combinatorics (122 citations), Algebra and Number Theory (62 citations) and Theoretical Computer Science (6 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, Helmut Prodinger, Shi-Mei Ma, Sabin Cautis, Michael Golomb, Albert A. Mullin, Roger B. Nelsen and Roger S. Pinkham. Their work appears in journals such as SHILAP Revista de lepidopterología, The Journal of Pediatrics 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.