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Research facility · Rennes · France

Institut de recherche mathématique de Rennes

In research, Institut de recherche mathématique de Rennes stands highest in Physical Sciences (#5,700 of 12,888 worldwide) and Mathematics (#810 of 1,053 worldwide), 2022–2025. Relative to its size it is most specialised in Mathematical Physics, Geometry and Topology and Mathematics — Mathematical Physics is 104.5× its share of world research.

irmar.univ-rennes.frROR OpenAlex
World rank, 2022–2025
#10,317
of 28,054 · #9,274 all time
Rank in France
#376
of 1,422
Research works
1.6k
▼ 24% vs 2013–17
Citations
25k
15.9 per fractional work
Top-10% rate
10.0%
record average 16.5%
Open access
67%
world 28%

What is Institut de recherche mathématique de Rennes known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #5,700 of 12,888 10.2%150 #5592
MathematicsField #810 of 1,053 9.0%82 #910

Each strip is that field’s whole ranked pool, with the notch where Institut de recherche mathématique de Rennes sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does Institut de recherche mathématique de Rennes specialise in?

Where its research is concentrated relative to its size: Mathematical Physics takes 104.5× the share of its output that it takes of world research.

  1. Mathematical PhysicsSubfield · 29.7 works105×
  2. Geometry and TopologySubfield · 21.3 works73×
  3. MathematicsField · 82.3 works39×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.46× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.59× its world share, 6 worksBiochemistry, Geneti…Immunology and Microbiology: 0.06× its world share, 0 worksImmunology and Micro…Neuroscience: 0.18× its world share, 0 worksNeuroscienceChemical Engineering: 0.09× its world share, 0 worksChemical EngineeringChemistry: 0.17× its world share, 0 worksChemistryComputer Science: 1.42× its world share, 20 worksComputer ScienceEarth and Planetary Sciences: 2.69× its world share, 8 worksEarth and Planetary …Energy: 0.07× its world share, 0 worksEnergyEngineering: 0.71× its world share, 19 worksEngineeringEnvironmental Science: 0.59× its world share, 5 worksEnvironmental ScienceMaterials Science: 0.11× its world share, 1 worksMaterials ScienceMathematics: 38.96× its world share, 82 worksMathematicsPhysics and Astronomy: 3.55× its world share, 14 worksPhysics and AstronomyDentistry: 0.15× its world share, 0 worksDentistryHealth Professions: 0.05× its world share, 0 worksHealth ProfessionsMedicine: 0.10× its world share, 4 worksMedicineNursing: 0.14× its world share, 0 worksNursingVeterinary: 1.48× its world share, 0 worksVeterinaryBusiness, Management and Accounting: 0.14× its world share, 1 worksBusiness, Management…Decision Sciences: 2.42× its world share, 4 worksDecision SciencesEconomics, Econometrics and Finance: 1.87× its world share, 7 worksEconomics, Econometr…Psychology: 0.07× its world share, 0 worksPsychologySocial Sciences: 0.12× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Mathematics, 39.0×. Every wedge is a field page.

Who are the top researchers at Institut de recherche mathématique de Rennes?

Ranked on the composite score, François Husson, Bernard Delyon and Michel Pierre lead among researchers whose main affiliation is Institut de recherche mathématique de Rennes.

  1. 1 François Husson France · #38,549 worldwide 433 citations · 35 works
  2. 2 Bernard Delyon France · #61,746 worldwide 737 citations · 27 works
  3. 3 Michel Pierre France · #82,414 worldwide 223 citations · 28 works
  4. 4 Ying Hu France · #96,259 worldwide 383 citations · 69 works
  5. 5 Mohammed Lemou France · #182,380 worldwide 154 citations · 39 works
  6. 6 Michel Crouzeix France · #203,958 worldwide 170 citations · 24 works
  7. 7 Arnaud Debussche France · #253,941 worldwide 259 citations · 47 works
  8. 8 Martin Costabel France · #305,180 worldwide 196 citations · 37 works
  9. 9 Sébastien Gouëzel France · #349,096 worldwide 122 citations · 26 works
  10. 10 Frédéric Rousset France · #363,217 worldwide 140 citations · 29 works
All ranked researchers at Institut de recherche mathématique de Rennes

Which keywords describe research at Institut de recherche mathématique de Rennes?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Dynamical Systems, Ergodic Theory, Symplectic Geometry, Chaos, Fractals, Lyapunov Exponents, Nonlinear Schrödinger Equation and Tropical Geometry.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Dynamical Systems10▲ 87×3 topics
  2. Ergodic Theory10▲ 192×2 topics
  3. Symplectic Geometry10▲ 154×2 topics
  4. Chaos8▲ 65×2 topics
  5. Fractals8▲ 256×1 topic
  6. Lyapunov Exponents8▲ 256×1 topic
  7. Nonlinear Schrödinger Equation8▲ 78×2 topics
  8. Tropical Geometry8▲ 134×2 topics
  9. Solitons7▲ 88×2 topics
  10. Gromov-Witten Theory7▲ 189×1 topic
  11. Moduli Theory7▲ 189×1 topic
  12. Monte Carlo Simulation6▲ 18×4 topics
  13. Global Well-Posedness6▲ 159×1 topic
  14. Scattering6▲ 159×1 topic
  15. Global Existence6▲ 100×2 topics
  16. Nonlinear Equations5▲ 23×5 topics
  17. Cohomology5▲ 68×2 topics
  18. Stability5▲ 12×2 topics
  19. Numerical Methods5▲ 32×4 topics
  20. Option Pricing5▲ 111×1 topic
  21. Stochastic Calculus5▲ 111×1 topic
  22. Knot Invariants5▲ 173×1 topic
  23. Symplectic Topology5▲ 173×1 topic
  24. Modular Forms5▲ 68×3 topics
  25. Representation Theory5▲ 82×2 topics
  26. Inverse Problems4▲ 23×4 topics
  27. L-Functions4▲ 82×2 topics
  28. Data Assimilation4▲ 15×3 topics
  29. K-Theory4▲ 93×2 topics
  30. Boundary Value Problems4▲ 43×3 topics
  31. Harmonic Analysis4▲ 86×2 topics
  32. Automorphic Forms4▲ 111×1 topic
  33. Bifurcations4▲ 87×1 topic
  34. Feedback Control4▲ 12×4 topics
  35. Langlands Conjectures4▲ 111×1 topic
  36. Numerical Integration4▲ 69×2 topics
  37. Planar Systems4▲ 152×1 topic
  38. Deformation Quantization3▲ 111×1 topic
  39. Model Selection3▲ 22×4 topics
  40. Poisson Manifolds3▲ 111×1 topic

Which research topics does Institut de recherche mathématique de Rennes publish most on?

By volume in 2022–2025: Mathematical Dynamics and Fractals, Algebraic Geometry and Number Theory, Advanced Mathematical Physics Problems and Stochastic processes and financial applications.

Mathematical Dynamics and Fractals: 8 fractional worksAlgebraic Geometry and Number Theory: 7 fractional worksAdvanced Mathematical Ph…6Advanced Mathematical Physics Problems: 6 fractional worksStochastic processes and…5Stochastic processes and financial applications: 5 fractional worksGeometric and Algebraic Topology: 5 fractional worksAdvanced Algebra and Geometry: 4 fractional worksAdvanced Differential Eq…4Advanced Differential Equations and Dynamical Systems: 4 fractional worksHomotopy and Cohomology in Algebraic Topology: 3 fractional worksNumerical methods for differential equations: 3 fractional worksNavier-Stokes equation solutions: 3 fractional works
Mathematical PhysicsGeometry and TopologyFinanceNumerical Analysis1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Mathematical Dynamics and Fractals Mathematical Physics 8 works
  2. 2 Algebraic Geometry and Number Theory Geometry and Topology 7 works
  3. 3 Advanced Mathematical Physics Problems Mathematical Physics 6 works
  4. 4 Stochastic processes and financial applications Finance 5 works
  5. 5 Geometric and Algebraic Topology Geometry and Topology 5 works
  6. 6 Advanced Algebra and Geometry Mathematical Physics 4 works
  7. 7 Advanced Differential Equations and Dynamical Systems Geometry and Topology 4 works
  8. 8 Homotopy and Cohomology in Algebraic Topology Mathematical Physics 3 works
  9. 9 Numerical methods for differential equations Numerical Analysis 3 works
  10. 10 Navier-Stokes equation solutions Applied Mathematics 3 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available66.6%not open33.4%

World: 28% of research is openly available.

with international co-authors21.8%domestic only78.2%

World: 19% is written across borders.

How has Institut de recherche mathématique de Rennes's research output changed?

Output in 2018–2022 was 24% lower than in 2013–2017.

1990200020102020
grewheldshrank

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

Other research institutions in Rennes

All research institutions in Rennes

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.