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Research facility · Marseille · France

Institut de Mathématiques de Marseille

In research, Institut de Mathématiques de Marseille stands highest in Physical Sciences (#7,741 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Mathematics — Mathematics is 43.0× its share of world research.

i2m.univ-amu.fr/?lang=frROR OpenAlex
World rank, 2022–2025
#14,995
of 28,054 · #9,221 all time
Rank in France
#638
of 1,422
Research works
1k
▼ 15% vs 2013–17
Citations
16k
16.2 per fractional work
Top-10% rate
5.7%
record average 16.5%
Open access
62%
world 28%

What is Institut de Mathématiques de Marseille 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 #7,741 of 12,888 5.7%102 #5501

Each strip is that field’s whole ranked pool, with the notch where Institut de Mathématiques de Marseille 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 Mathématiques de Marseille specialise in?

Where its research is concentrated relative to its size: Mathematics takes 43.0× the share of its output that it takes of world research.

  1. MathematicsField · 59.8 works43×
← 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: 0.20× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.38× its world share, 2 worksBiochemistry, Geneti…Neuroscience: 0.21× its world share, 0 worksNeuroscienceChemical Engineering: 0.16× its world share, 0 worksChemical EngineeringChemistry: 0.06× its world share, 0 worksChemistryComputer Science: 2.16× its world share, 20 worksComputer ScienceEarth and Planetary Sciences: 1.07× its world share, 2 worksEarth and Planetary …Energy: 0.06× its world share, 0 worksEnergyEngineering: 0.64× its world share, 11 worksEngineeringEnvironmental Science: 0.28× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 0 worksMaterials ScienceMathematics: 42.96× its world share, 60 worksMathematicsPhysics and Astronomy: 2.58× its world share, 7 worksPhysics and AstronomyHealth Professions: 0.34× its world share, 1 worksHealth ProfessionsMedicine: 0.16× its world share, 4 worksMedicineNursing: 0.05× its world share, 0 worksNursingArts and Humanities: 0.31× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.02× its world share, 0 worksBusiness, Management…Decision Sciences: 1.38× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.51× its world share, 1 worksEconomics, Econometr…Psychology: 0.09× its world share, 0 worksPsychologySocial Sciences: 0.22× 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, 43.0×. Every wedge is a field page.

Who are the top researchers at Institut de Mathématiques de Marseille?

Ranked on the composite score, Thierry Gallouët, Julien Cassaigne and François Hamel lead among researchers whose main affiliation is Institut de Mathématiques de Marseille.

  1. 1 Thierry Gallouët France · #130,487 worldwide 201 citations · 23 works
  2. 2 Julien Cassaigne France · #254,077 worldwide 147 citations · 32 works
  3. 3 François Hamel France · #445,384 worldwide 88 citations · 37 works
  4. 4 Patrick Delorme France · #497,779 worldwide 64 citations · 17 works
  5. 5 C. Klimčı́k France · #513,985 worldwide 161 citations · 24 works
  6. 6 Assia Benabdallah France · #534,635 worldwide 101 citations · 15 works
  7. 7 Gilles Lachaud France · #610,318 worldwide 39 citations · 20 works
  8. 8 Michel Cristofol France · #723,867 worldwide 46 citations · 17 works
  9. 9 Joël Rivat France · #758,268 worldwide 37 citations · 22 works
  10. 10 Martin Lustig France · #859,466 worldwide 49 citations · 21 works
All ranked researchers at Institut de Mathématiques de Marseille

Which keywords describe research at Institut de Mathématiques de Marseille?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Modular Forms, Ergodic Theory, L-Functions, Random Matrix Theory, Number Theory, Dynamical Systems, Tropical Geometry and Chaos.

▲ 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. Modular Forms8▲ 178×3 topics
  2. Ergodic Theory7▲ 196×2 topics
  3. L-Functions7▲ 198×2 topics
  4. Random Matrix Theory6▲ 168×3 topics
  5. Number Theory6▲ 216×3 topics
  6. Dynamical Systems5▲ 68×3 topics
  7. Tropical Geometry5▲ 131×2 topics
  8. Chaos5▲ 55×3 topics
  9. Symplectic Geometry5▲ 108×2 topics
  10. Primes4▲ 353×1 topic
  11. Riemann Zeta Function4▲ 353×1 topic
  12. Fractals4▲ 210×1 topic
  13. Lyapunov Exponents4▲ 210×1 topic
  14. Nonlinear Equations4▲ 29×6 topics
  15. Dynamics4▲ 76×3 topics
  16. Numerical Methods4▲ 41×4 topics
  17. Porous Media4▲ 26×3 topics
  18. Heterogeneous4▲ 84×1 topic
  19. Multiscale Methods4▲ 84×1 topic
  20. Cryptography4▲ 24×2 topics
  21. Gromov-Witten Theory3▲ 135×1 topic
  22. Moduli Theory3▲ 135×1 topic
  23. Representation Theory3▲ 83×2 topics
  24. Wavelets3▲ 83×2 topics
  25. Error-Correcting Codes3▲ 73×2 topics
  26. Inverse Problems3▲ 22×4 topics
  27. Algebraic Attacks3▲ 103×1 topic
  28. Reed-Solomon Codes3▲ 103×1 topic
  29. Cohomology3▲ 51×2 topics
  30. Universality3▲ 109×2 topics
  31. Mathematical Physics2▲ 146×2 topics
  32. String Theory2▲ 37×2 topics
  33. Vortex Dynamics2▲ 18×3 topics
  34. Stability2▲ 9.0×2 topics
  35. Geometry2▲ 119×1 topic
  36. Hyperbolic2▲ 119×1 topic
  37. Large-Eddy Simulation2▲ 10.0×2 topics
  38. p-adic2▲ 174×1 topic
  39. ultrametric2▲ 174×1 topic
  40. Scattering Theory2▲ 58×2 topics

Which research topics does Institut de Mathématiques de Marseille publish most on?

By volume in 2022–2025: Analytic Number Theory Research, Mathematical Dynamics and Fractals, Advanced Mathematical Modeling in Engineering and Algebraic Geometry and Number Theory.

Analytic Number Theory R…4Analytic Number Theory Research: 4 fractional worksMathematical Dynamics an…4Mathematical Dynamics and Fractals: 4 fractional worksAdvanced Mathematical Mo…4Advanced Mathematical Modeling in Engineering: 4 fractional worksAlgebraic Geometry and N…3Algebraic Geometry and Number Theory: 3 fractional worksCoding theory and cryptography: 3 fractional worksadvanced mathematical theories: 2 fractional worksMathematics and Applicat…2Mathematics and Applications: 2 fractional worksAdvanced Algebra and Geometry: 2 fractional worksGeometric and Algebraic Topology: 2 fractional worksSpectral Theory in Mathe…2Spectral Theory in Mathematical Physics: 2 fractional works
Algebra and Number TheoryMathematical PhysicsComputational Theory and MathematicsGeometry and Topology1 others

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

  1. 1 Analytic Number Theory Research Algebra and Number Theory 4 works
  2. 2 Mathematical Dynamics and Fractals Mathematical Physics 4 works
  3. 3 Advanced Mathematical Modeling in Engineering Computational Theory and Mathematics 4 works
  4. 4 Algebraic Geometry and Number Theory Geometry and Topology 3 works
  5. 5 Coding theory and cryptography Artificial Intelligence 3 works
  6. 6 advanced mathematical theories Mathematical Physics 2 works
  7. 7 Mathematics and Applications Geometry and Topology 2 works
  8. 8 Advanced Algebra and Geometry Mathematical Physics 2 works
  9. 9 Geometric and Algebraic Topology Geometry and Topology 2 works
  10. 10 Spectral Theory in Mathematical Physics Mathematical Physics 2 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 available61.9%not open38.1%

World: 28% of research is openly available.

with international co-authors25.4%domestic only74.6%

World: 19% is written across borders.

How has Institut de Mathématiques de Marseille's research output changed?

Output in 2018–2022 was 15% 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 Marseille

All research institutions in Marseille

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.