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Theoretical Computer Science research

Theoretical Computer Science is a subfield of Mathematics. Science Explorer counts 34k research works in it since 1950. 10.1% of them reached the world's top 10% most cited for their field and year.

In short: subfield of computer science and mathematics.

Research works
34k
fractional, since 1950
In the world top 10%
3.4k
per year above
Top-10% rate
10.1%
share of its works in the world top 10%
Topics
1
Growth, 2018-21 → 2022-25
+5%
the tick is no change
Largest producer
United States
32% of the 10 largest, 2022-now

Which countries lead Theoretical Computer Science research?

On research quality in 2022-now, the United States, Germany and France rank highest in Theoretical Computer Science. By volume, the United States and Germany publish the most (962 and 555 works in 2022-now).

By research quality, 2022-now

  1. 1 United States #1 all time 1.04× citation excellence · 1.51× journals · 100% breadth 10.2% top 10% · 832 works
  2. 2 Germany #2 all time 1.03× citation excellence · 1.38× journals · 100% breadth 4.8% top 10% · 509 works
  3. 3 France #3 all time 1.02× citation excellence · 1.24× journals · 100% breadth 9.6% top 10% · 326 works
  4. 4 United Kingdom #4 all time 0.91× citation excellence · 1.45× journals · 100% breadth 9.5% top 10% · 214 works

The track on each row is that row's top-10% rate. The ranking itself is the quality score, which compares the rate with what each place's own topics predict, adds its share of papers in the Nature Index journals, and counts output and breadth too.

Of 4 countries ranked in Theoretical Computer Science. Ranked on the quality score for 2022-now; the bracket is the all-time rank.

All countries ranked in Theoretical Computer Science

By volume, 2022-now

  1. 1 United States 962 works
  2. 2 Germany 555 works
  3. 3 France 344 works
  4. 4 United Kingdom 240 works
  5. 5 Italy 198 works
  6. 6 India 156 works
  7. 7 Brazil 141 works
  8. 8 China 137 works
  9. 9 Canada 129 works
  10. 10 Russia 106 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

United States: 32.4%Germany: 18.7%France: 11.6%United Kingdom: 8.1%6 others listed: 29.2%32%largest
United States962 · 32.4%Germany555 · 18.7%France344 · 11.6%United Kingdom240 · 8.1%6 others listed868 · 29.2%

Shares of the rows listed above, not of the whole node.

Which institutions lead Theoretical Computer Science research?

Centre National de la Recherche Scientifique (France) ranks first in Theoretical Computer Science on research quality in 2022-now, followed by .

By research quality, 2022-now

  1. 1 Centre National de la Recherche Scientifique France · Paris · #2 all time 10.9% top 10% · 136 works

The track on each row is that row's top-10% rate. The ranking itself is the quality score, which compares the rate with what each place's own topics predict, adds its share of papers in the Nature Index journals, and counts output and breadth too.

Of 1 institutions above the floor of 40 fractional works in Theoretical Computer Science.

Top 100 Theoretical Computer Science institutions

Who are the leading researchers in Theoretical Computer Science?

Counting only their work in Theoretical Computer Science, Henryk Iwaniec, H. Davenport and Mikhail G. Katz have the most papers in the world top 10% for their subfield and year beyond the 10% expected.

  1. 1 Henryk Iwaniec United States · #49,673 worldwide overall 7.5 of 11 papers here in the top 10%
  2. 2 H. Davenport United States · #201,022 worldwide overall 8.3 of 21 papers here in the top 10%
  3. 3 Mikhail G. Katz Israel · #368,557 worldwide overall 7.9 of 14 papers here in the top 10%
  4. 4 Keith D. Weber United States · #155,841 worldwide overall 6.8 of 10 papers here in the top 10%
  5. 5 David O. Tall United Kingdom · #443,566 worldwide overall 6.7 of 16 papers here in the top 10%
  6. 6 Georg Kreisel United States · #134,720 worldwide overall 6.0 of 11 papers here in the top 10%
  7. 7 Carl B. Pomerance United States · #879,781 worldwide overall 6.5 of 17 papers here in the top 10%
  8. 8 David Rodney Heath-Brown United States · #120,628 worldwide overall 6.3 of 16 papers here in the top 10%
  9. 9 Solomon Feferman United States · #347,675 worldwide overall 6.2 of 16 papers here in the top 10%
  10. 10 Tom M. Apostol United States · #1,143,338 worldwide overall 5.5 of 14 papers here in the top 10%

Ranked on their work in Theoretical Computer Science alone: how many more of their papers here reached the world top 10% for their subfield and year than the 10% expected, among 58,875 ranked researchers with a paper here. Each paper counts once, so many strong papers outrank one famous one, and a long record of ordinary papers does not climb. Identities come from OpenAlex author disambiguation, which occasionally merges or splits people.

Top 100 Theoretical Computer Science researchers

What are the most cited papers in Theoretical Computer Science?

The most cited paper in Theoretical Computer Science is "Chapman and Hall" (Anne Lohrli, 1985), with 4,367 citations. Next come "Doctoral Dissertation" (2,609) and "A First Course in Numerical Analysis" (2,456).

Most cited papers
#PaperReleasedCitations
1 Chapman and Hall Anne Lohrli · Notes and Queries Sep 1985 4,367
2 Doctoral Dissertation Michael Monastyrsky · Birkhäuser Boston eBooks Book chapter 1987 2,609
3 A First Course in Numerical Analysis Herbert Maisel, Anthony Ralston · Technometrics Aug 1966 2,456
4 Epiphenomenal Qualia Frank Jackson · The Philosophical Quarterly Apr 1982 2,253
5 The Classical Theory of Fields L.D. LANDAU, E.M. LIFSHITZ, C. H. Holbrow · Physics Today Jun 1963 2,184
All 98 most cited papers, with filters and sorting

Where is Theoretical Computer Science research done?

The largest centres of Theoretical Computer Science research in 2022-now are Paris (France), Munich (Germany), New York (United States) and Moscow (Russia). Among places with at least 20 works in it, it is an unusually large share of all research in Neustadt, Leverkusen and Guarulhos.

Largest cities, 2022-now

  1. 1 ParisFrance 135 works
  2. 2 MunichGermany 52 works
  3. 3 New YorkUnited States 49 works
  4. 4 MoscowRussia 44 works
  5. 5 BeijingChina 42 works
  6. 6 RomeItaly 40 works
  7. 7 BerlinGermany 38 works
  8. 8 CambridgeUnited Kingdom 38 works
  9. 9 LondonUnited Kingdom 38 works
  10. 10 ZurichSwitzerland 34 works

Where it is the local speciality

  1. NeustadtDE · 23.7 works300×
  2. LeverkusenDE · 26.4 works80×
  3. GuarulhosBR · 20.2 works51×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Theoretical Computer Science than the world average.

See Theoretical Computer Science on the map

Theoretical Computer Science research by country

The best places for Theoretical Computer Science research inside each country, with that country's researchers and world standing.

Where is the best place to study Theoretical Computer Science?

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

0%10%20%30%mean 14.21%fractional works in this field (log) →share of work in the world top 10% →University of Califo…Stanford UniversityUniversity of Cambri…University of Oxford
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Standingthis field's institution ranking, three quarters all time and a quarter 2022-now
50%
Citation excellenceshare of its work in the world top 10%, 2022-now and all time averaged
20%
Specialisationhow much of its work is in this field, counted up to 10× the world share
5%
Sizeits output in this field, on a log scale
15%
Growthoutput growth, counted from -20% to +20%
5%
Internationalshare of its work with a co-author abroad
5%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreRank in field (all time)Top 10%SpecialisationWorksGrowth
1Stanford UniversityUnited States 75.7- (#1)10.4%2.8×15 +226.2%
2University of CambridgeUnited Kingdom 62.5- (#3)9.2%8.6×36 -11.1%
3University of OxfordUnited Kingdom 49.1- (#7)7.9%6.3×32 +104.5%
4University of California, BerkeleyUnited States 40.7- (#6)18.6%3.3×11 -3.1%
5University of TorontoCanada 37.1- (#10)7.5%3.1×23 +90.0%
6Université Paris CitéFrance 35.5- (#12)15.1%6.8×18 +13.9%
7University of ViennaAustria 33.3-19.8%8.9×16 +29.3%
8KU LeuvenBelgium 33.2-24.0%4.4×15 +9.2%
9Technical University of MunichGermany 31.4- (#13)1.1%9.6×30 +294.9%
10University of EdinburghUnited Kingdom 30.8-28.5%2.7×8 +30.3%

Universities only. The score blends standing (50%), citation excellence (20%), size (15%), specialisation (5%), growth (5%), international reach (5%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise. Standing is the score in this field's institution ranking, three quarters over all time and a quarter 2022-now; excellence averages the two windows too. Four years alone undercount fields such as AI, where many conference and arXiv papers from 2022 on carry no affiliation in the data.

Every institution in Theoretical Computer Science, country by country

Is Theoretical Computer Science research growing?

Output in 2022-2025 was 5% higher than in 2018-2021, peaking in 2018. The fastest-growing topics are History and Theory of Mathematics.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Theoretical Computer Science as a percentage of every work published that year, 0.017% in 2024.

still counting0.050%0.10%0.15%Theoretical Computer Science0.016% in 202519801990200020102020

Fractional works of Theoretical Computer Science over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Theoretical Computer Science10.1% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

What does Theoretical Computer Science include?

Share who leads Theoretical Computer Science

Who leads Theoretical Computer Science, on Science Explorer

A card with the countries and institutions that lead Theoretical Computer Science, for a post or a slide.

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1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

The leading institutions' badges1Each links to that institution's page and updates with every snapshot

Discussion

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