Peter Johnstone

3.6k citations
98 papers · 2.1k · 1 hit paper · h-index 25

Impact in

Papers in

Peter Johnstone

92 papers receiving 1.8k citations

Peter Johnstone's Hit Papers

Sketches of an Elephant A Topos Theory Compendium 2002 · 446 citations
4460+8+16Years since publication100200300400

Peers

Peter Johnstone
Comparison fields: 5 of 99
  • Algebra and Number Theory 559
  • Mathematical Physics 925
  • Geometry and Topology 836
  • Computational Theory and Mathematics 926
  • Theoretical Computer Science 47
Replace J. Lambek with:
J. Lambek Canada
Francis Borceux Belgium
Joachim Lambek Canada
F. William Lawvere United States
Peter Freyd United States
Angus Macintyre United Kingdom
Kenneth Kunen United States
Menachem Magidor Israel
Michael Makkai Canada
Donald A. Martin United States
Peter Johnstone relative to J. Lambek Canada J. Lambek's profile →
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Countries citing papers authored by Peter Johnstone

Since Specialization
Citations

This map shows the geographic impact of Peter Johnstone'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 Peter Johnstone with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Peter Johnstone more than expected).

Fields of papers citing papers by Peter Johnstone

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Peter Johnstone. 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 Peter Johnstone. The network helps show where Peter Johnstone may publish in the future.

Co-authors

The 25 scholars most cited alongside Peter Johnstone, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Peter Johnstone Line = papers co-authored together Peter Johnstone links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 98 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Sketches of an Elephant A Topos Theory Compendium
Hit paper breakdown →
2002446
2 1983105
3 198081
4 197578
5 199274
6 198170
7
Sketches of an Elephant
200769
8 199558
9 197852
10 198747
11 198144
12 197943
13 199141
14 198240
15 198940
16 197938
17 198337
18 200236
19 198636
20 198035

About Peter Johnstone

Peter Johnstone is a scholar working on Geometry and Topology, Mathematical Physics, Computational Theory and Mathematics, Algebra and Number Theory and Artificial Intelligence, having authored 98 papers that have together received 2.1k indexed citations. Recurring topics across this work include Homotopy and Cohomology in Algebraic Topology (32 papers), Advanced Topology and Set Theory (25 papers), Rings, Modules, and Algebras (20 papers), Advanced Algebra and Logic (20 papers), Logic, programming, and type systems (10 papers), Advanced Topics in Algebra (10 papers), Algebraic structures and combinatorial models (8 papers) and Computability, Logic, AI Algorithms (7 papers). The work is most often cited by research in Algebra and Number Theory (559 citations), Mathematical Physics (925 citations), Geometry and Topology (836 citations), Computational Theory and Mathematics (926 citations) and Theoretical Computer Science (47 citations). Peter Johnstone has collaborated with scholars based in United Kingdom, United States and Canada. Frequent co-authors include A. Carboni, Andrew M. Pitts, J. M. E. Hyland, Steven Vickers, André Joyal, Arūnas Juška, Ieke Moerdijk, Richard Pozzuto, Richard J. Wood and Robert Paré. Their work appears in journals such as Lecture notes in mathematics, Bulletin of the London Mathematical Society, Journal of Pure and Applied Algebra, Mathematical Proceedings of the Cambridge Philosophical Society and Theory and applications of categories.

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.

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