Question 1

Which countries lead semigroups and automata theory research?

Accepted Answer

By volume, the United States and France publish the most (335 and 198 works in 2022-now).

Question 2

Which institutions lead semigroups and automata theory research?

Accepted Answer

By volume in 2022-now, Centre National de la Recherche Scientifique publishes the most semigroups and automata theory research, followed by Russian Academy of Sciences and University of Waterloo.

Question 3

Who are the leading researchers in semigroups and automata theory?

Accepted Answer

The most-cited researchers publishing on semigroups and automata theory include David H. Haussler, H. Vincent Poor and Eugene Wimberly Myers.

Question 4

Where is semigroups and automata theory research done?

Accepted Answer

The largest centres of semigroups and automata theory research in 2022-now are Paris (France), Moscow (Russia), Prague (Czechia) and Beijing (China). Among places with at least 20 works in it, it is an unusually large share of all research in Waterloo.

Question 5

Where is the best place to study semigroups and automata theory?

Accepted Answer

Among universities, judged by research, University of Oxford, University of Waterloo and University of Cambridge score highest, combining citation excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

Question 6

Is semigroups and automata theory research growing?

Accepted Answer

Output in 2022-2025 was 0% higher than in 2018-2021, peaking in 2011. The fastest-growing topics are semigroups and automata theory.

Question 7

What are the most cited papers in semigroups and automata theory?

Accepted Answer

The most cited paper in semigroups and automata theory is "Reducibility among Combinatorial Problems" (Richard M. Karp, 1972), with 11,108 citations. Next come "Communication and Concurrency" (6,871) and "The complexity of theorem-proving procedures" (6,257).