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Company · Lyon · France

Mersen (France)

In research, Mersen (France) stands highest in Physical Sciences (#19,676 of 21,541 worldwide), over all time. Relative to its size it is most specialised in Mathematics — Mathematics is 42.9× its share of world research.

mersen.com/frROR OpenAlex
World rank, all time
#32,625
of 42,892
Rank in France
#1,819
of 2,321
Research works
184
▲ 26% vs 2013–17
Citations
2.5k
13.6 per fractional work
Top-10% rate
3.8%
record average 16.5%
Open access
52%
world 28%

What is Mersen (France) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #19,676 of 21,541 8.3%122

Each strip is that field’s whole ranked pool, with the notch where Mersen (France) 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 Mersen (France) specialise in?

Where its research is concentrated relative to its size: Mathematics takes 42.9× the share of its output that it takes of world research.

  1. MathematicsField · 26.7 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: 0.05× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.06× its world share, 0 worksBiochemistry, Geneti…Chemistry: 0.65× its world share, 0 worksChemistryComputer Science: 1.20× its world share, 5 worksComputer ScienceEarth and Planetary Sciences: 0.35× its world share, 0 worksEarth and Planetary …Energy: 0.91× its world share, 0 worksEnergyEngineering: 0.98× its world share, 8 worksEngineeringEnvironmental Science: 0.44× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.47× its world share, 1 worksMaterials ScienceMathematics: 42.94× its world share, 27 worksMathematicsPhysics and Astronomy: 0.85× its world share, 1 worksPhysics and AstronomyDentistry: 0.20× its world share, 0 worksDentistryHealth Professions: 0.46× its world share, 1 worksHealth ProfessionsMedicine: 0.16× its world share, 2 worksMedicineArts and Humanities: 0.31× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.03× its world share, 0 worksBusiness, Management…Decision Sciences: 0.11× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.20× its world share, 0 worksEconomics, Econometr…Psychology: 0.12× its world share, 0 worksPsychologySocial Sciences: 0.82× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Mathematics, 42.9×. Every wedge is a field page.

Who are the top researchers at Mersen (France)?

Ranked on the composite score, Carine Maraquin and Jacques Maire lead among researchers whose main affiliation is Mersen (France).

  1. 1 Carine Maraquin France · #639,519 worldwide 0 citations · 18 works
  2. 2 Jacques Maire France · #1,600,924 worldwide 5 citations · 15 works
All ranked researchers at Mersen (France)

Which keywords describe research at Mersen (France)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Symplectic Geometry, Tropical Geometry, Modular Forms, Cohomology, Representation Theory, Gromov-Witten Theory, Moduli Theory and L-Functions.

▲ 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. Symplectic Geometry5▲ 258×2 topics
  2. Tropical Geometry4▲ 227×2 topics
  3. Cohomology4▲ 153×2 topics
  4. Gromov-Witten Theory4▲ 330×1 topic
  5. Modular Forms4▲ 176×3 topics
  6. Moduli Theory4▲ 330×1 topic
  7. Representation Theory4▲ 209×2 topics
  8. L-Functions3▲ 222×2 topics
  9. Automorphic Forms3▲ 303×1 topic
  10. Langlands Conjectures3▲ 303×1 topic
  11. Professional Practices2▲ 111×1 topic
  12. Public Action2▲ 111×1 topic
  13. Knot Invariants2▲ 275×1 topic
  14. Symplectic Topology2▲ 275×1 topic
  15. K-Theory2▲ 152×2 topics
  16. Dynamical Systems2▲ 51×3 topics
  17. Quantum Groups2▲ 90×2 topics
  18. Stability2▲ 14×2 topics
  19. Deep Learning2▼ 0.84×6 topics
  20. Deformation Quantization2▲ 171×1 topic
  21. Poisson Manifolds2▲ 171×1 topic
  22. Thermal Management2▲ 8.3×3 topics
  23. Kähler Metrics1▲ 203×1 topic
  24. Neural Networks1▲ 1.67×4 topics
  25. Scalar Curvature1▲ 203×1 topic
  26. Optimal Transport1▲ 115×1 topic
  27. Reliability1▲ 32×1 topic
  28. Ricci Curvature1▲ 115×1 topic
  29. Wide Bandgap Semiconductors1▲ 59×1 topic
  30. Chaos1▲ 31×1 topic
  31. Cluster Algebras1▲ 82×1 topic
  32. Fractals1▲ 127×1 topic
  33. Triangulated Categories1▲ 82×1 topic
  34. Artificial Neural Networks1▲ 4.4×2 topics
  35. Power Electronics1▲ 6.0×3 topics
  36. Backpropagation Learning1▲ 24×1 topic
  37. Ethical Considerations1▲ 5.7×2 topics
  38. Forensic Toxicology1▲ 72×1 topic
  39. Medical Chemistry1▲ 224×1 topic
  40. Self-Organizing Maps1▲ 24×1 topic

Which research topics does Mersen (France) publish most on?

By volume in 2022–2025: Algebraic Geometry and Number Theory, Advanced Algebra and Geometry, Education, sociology, and vocational training and Geometric and Algebraic Topology.

Algebraic Geometry and Number Theory: 4 fractional worksAdvanced Algebra and Geometry: 3 fractional worksEducation, sociology, an…2Education, sociology, and vocational training: 2 fractional worksGeometric and Algebraic …2Geometric and Algebraic Topology: 2 fractional worksHomotopy and Cohomology in Algebraic Topology: 2 fractional worksGeometry and complex manifolds: 1 fractional worksSilicon Carbide Semicond…1Silicon Carbide Semiconductor Technologies: 1 fractional worksGeometric Analysis and Curvature Flows: 1 fractional worksMathematical Dynamics and Fractals: 1 fractional worksAlgebraic structures and combinatorial models: 1 fractional works
Geometry and TopologyMathematical PhysicsSociology and Political ScienceElectrical and Electronic Engineering1 others

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

  1. 1 Algebraic Geometry and Number Theory Geometry and Topology 4 works
  2. 2 Advanced Algebra and Geometry Mathematical Physics 3 works
  3. 3 Education, sociology, and vocational training Sociology and Political Science 2 works
  4. 4 Geometric and Algebraic Topology Geometry and Topology 2 works
  5. 5 Homotopy and Cohomology in Algebraic Topology Mathematical Physics 2 works
  6. 6 Geometry and complex manifolds Geometry and Topology 1 works
  7. 7 Silicon Carbide Semiconductor Technologies Electrical and Electronic Engineering 1 works
  8. 8 Geometric Analysis and Curvature Flows Applied Mathematics 1 works
  9. 9 Mathematical Dynamics and Fractals Mathematical Physics 1 works
  10. 10 Algebraic structures and combinatorial models Geometry and Topology 1 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 available52.2%not open47.8%

World: 28% of research is openly available.

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

World: 19% is written across borders.

How has Mersen (France)'s research output changed?

Output in 2018–2022 was 26% higher 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 Lyon

All research institutions in Lyon

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.