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Research facility · Orsay · France

Laboratoire de Mathématiques d'Orsay

In research, Laboratoire de Mathématiques d'Orsay stands highest in Physical Sciences (#5,485 of 12,888 worldwide) and Mathematics (#603 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 94.4× its share of world research.

imo.universite-paris-saclay.frROR OpenAlex
World rank, 2022–2025
#9,724
of 28,054 · #3,350 all time
Rank in France
#341
of 1,422
Research works
4.8k
▼ 20% vs 2013–17
Citations
88k
18.5 per fractional work
Top-10% rate
8.5%
record average 16.5%
Open access
45%
world 28%

What is Laboratoire de Mathématiques d'Orsay 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 #5,485 of 12,888 9.2%250 #2208
MathematicsField #603 of 1,053 10.6%153 #156

Each strip is that field’s whole ranked pool, with the notch where Laboratoire de Mathématiques d'Orsay 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 Laboratoire de Mathématiques d'Orsay specialise in?

Where its research is concentrated relative to its size: Mathematical Physics takes 94.4× the share of its output that it takes of world research.

  1. Mathematical PhysicsSubfield · 47.6 works94×
  2. Geometry and TopologySubfield · 30.8 works59×
  3. MathematicsField · 153.4 works41×
  4. Applied MathematicsSubfield · 36.5 works40×
  5. Computational Theory and MathematicsSubfield · 21.5 works16×
← 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: 0.14× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.27× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 0.07× its world share, 0 worksImmunology and Micro…Neuroscience: 0.11× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.07× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.03× its world share, 0 worksChemical EngineeringChemistry: 0.24× its world share, 1 worksChemistryComputer Science: 1.49× its world share, 37 worksComputer ScienceEarth and Planetary Sciences: 0.41× its world share, 2 worksEarth and Planetary …Energy: 0.25× its world share, 1 worksEnergyEngineering: 0.67× its world share, 32 worksEngineeringEnvironmental Science: 0.18× its world share, 3 worksEnvironmental ScienceMaterials Science: 0.24× its world share, 3 worksMaterials ScienceMathematics: 40.99× its world share, 153 worksMathematicsPhysics and Astronomy: 2.60× its world share, 18 worksPhysics and AstronomyHealth Professions: 0.34× its world share, 3 worksHealth ProfessionsMedicine: 0.18× its world share, 11 worksMedicineVeterinary: 0.13× its world share, 0 worksVeterinaryArts and Humanities: 0.74× its world share, 7 worksArts and HumanitiesBusiness, Management and Accounting: 0.13× its world share, 1 worksBusiness, Management…Decision Sciences: 0.63× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.68× its world share, 5 worksEconomics, Econometr…Psychology: 0.42× its world share, 4 worksPsychologySocial Sciences: 0.69× its world share, 28 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Mathematics, 41.0×. Every wedge is a field page.

Who are the top researchers at Laboratoire de Mathématiques d'Orsay?

Ranked on the composite score, Patrick Gérard, Robin Genuer and Guy Henniart lead among researchers whose main affiliation is Laboratoire de Mathématiques d'Orsay.

  1. 1 Patrick Gérard France · #126,711 worldwide 230 citations · 41 works
  2. 2 Robin Genuer France · #176,738 worldwide 523 citations · 18 works
  3. 3 Guy Henniart France · #181,675 worldwide 183 citations · 33 works
  4. 4 Gilles Stoltz France · #201,833 worldwide 290 citations · 36 works
  5. 5 Pascal Auscher France · #356,747 worldwide 228 citations · 59 works
  6. 6 Bertrand Deroin France · #416,969 worldwide 56 citations · 18 works
  7. 7 Sylvain Crovisier France · #419,367 worldwide 85 citations · 29 works
  8. 8 Charles Ehresmann France · #463,134 worldwide 67 citations · 15 works
  9. 9 Thomas Alazard France · #722,852 worldwide 125 citations · 28 works
  10. 10 Konstantin Pankrashkin France · #870,298 worldwide 64 citations · 26 works
All ranked researchers at Laboratoire de Mathématiques d'Orsay

Which keywords describe research at Laboratoire de Mathématiques d'Orsay?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Cohomology, Symplectic Geometry, Nonlinear Equations, Quantum Groups, Modular Forms, Porous Media, Nonlinear Schrödinger Equation and Finite Element.

▲ 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. Cohomology15▲ 109×2 topics
  2. Symplectic Geometry12▲ 107×2 topics
  3. Nonlinear Equations11▲ 28×5 topics
  4. Quantum Groups11▲ 101×2 topics
  5. Modular Forms11▲ 90×3 topics
  6. Porous Media11▲ 26×4 topics
  7. Nonlinear Schrödinger Equation11▲ 61×2 topics
  8. Finite Element11▲ 75×2 topics
  9. Dynamical Systems10▲ 49×3 topics
  10. L-Functions10▲ 109×2 topics
  11. Heterogeneous10▲ 77×1 topic
  12. Multiscale Methods10▲ 77×1 topic
  13. K-Theory9▲ 118×2 topics
  14. Stability9▲ 13×2 topics
  15. Representation Theory9▲ 92×2 topics
  16. Solitons9▲ 63×2 topics
  17. Chaos8▲ 35×3 topics
  18. Ergodic Theory8▲ 87×2 topics
  19. Tropical Geometry8▲ 78×2 topics
  20. Controllability8▲ 58×2 topics
  21. Cluster Algebras8▲ 91×1 topic
  22. Triangulated Categories8▲ 91×1 topic
  23. Global Well-Posedness8▲ 116×1 topic
  24. Scattering8▲ 116×1 topic
  25. Global Existence8▲ 75×2 topics
  26. Automorphic Forms8▲ 133×1 topic
  27. Langlands Conjectures8▲ 133×1 topic
  28. Deformations7▲ 91×1 topic
  29. Hom-Lie Algebras7▲ 91×1 topic
  30. Boundary Value Problems7▲ 44×3 topics
  31. Fractals7▲ 127×1 topic
  32. Lyapunov Exponents7▲ 127×1 topic
  33. Numerical Methods7▲ 27×5 topics
  34. Differential Operators7▲ 156×1 topic
  35. Spectral Theory7▲ 156×1 topic
  36. Gromov-Witten Theory7▲ 105×1 topic
  37. Moduli Theory7▲ 105×1 topic
  38. Optimal Transport6▲ 94×1 topic
  39. Ricci Curvature6▲ 94×1 topic
  40. Attractors6▲ 50×2 topics

Which research topics does Laboratoire de Mathématiques d'Orsay publish most on?

By volume in 2022–2025: Advanced Mathematical Modeling in Engineering, Algebraic structures and combinatorial models, Advanced Mathematical Physics Problems and Advanced Algebra and Geometry.

Advanced Mathematical Mo…10Advanced Mathematical Modeling in Engineering: 10 fractional worksAlgebraic structures and…8Algebraic structures and combinatorial models: 8 fractional worksAdvanced Mathematical Physics Problems: 8 fractional worksAdvanced Algebra and Geo…8Advanced Algebra and Geometry: 8 fractional worksAdvanced Topics in Algebra: 7 fractional worksMathematical Dynamics and Fractals: 7 fractional worksSpectral Theory in Mathematical Physics: 7 fractional worksAlgebraic Geometry and N…7Algebraic Geometry and Number Theory: 7 fractional worksGeometric Analysis and Curvature Flows: 6 fractional worksHomotopy and Cohomology in Algebraic Topology: 6 fractional works
Computational Theory and MathematicsGeometry and TopologyMathematical PhysicsAlgebra and Number Theory1 others

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

  1. 1 Advanced Mathematical Modeling in Engineering Computational Theory and Mathematics 10 works
  2. 2 Algebraic structures and combinatorial models Geometry and Topology 8 works
  3. 3 Advanced Mathematical Physics Problems Mathematical Physics 8 works
  4. 4 Advanced Algebra and Geometry Mathematical Physics 8 works
  5. 5 Advanced Topics in Algebra Algebra and Number Theory 7 works
  6. 6 Mathematical Dynamics and Fractals Mathematical Physics 7 works
  7. 7 Spectral Theory in Mathematical Physics Mathematical Physics 7 works
  8. 8 Algebraic Geometry and Number Theory Geometry and Topology 7 works
  9. 9 Geometric Analysis and Curvature Flows Applied Mathematics 6 works
  10. 10 Homotopy and Cohomology in Algebraic Topology Mathematical Physics 6 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 available45.1%not open54.9%

World: 28% of research is openly available.

with international co-authors31.1%domestic only68.9%

World: 19% is written across borders.

How has Laboratoire de Mathématiques d'Orsay's research output changed?

Output in 2018–2022 was 20% 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 Orsay

All research institutions in Orsay

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.