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Research facility · Nantes · France

Laboratoire de Mathématiques Jean Leray

In research, Laboratoire de Mathématiques Jean Leray stands highest in Physical Sciences (#8,623 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Mathematics — Mathematics is 39.2× its share of world research.

math.sciences.univ-nantes.fr/enROR OpenAlex
World rank, 2022–2025
#16,890
of 28,054 · #18,368 all time
Rank in France
#759
of 1,422
Research works
507
▲ 21% vs 2013–17
Citations
5.2k
10.3 per fractional work
Top-10% rate
15.1%
record average 16.5%
Open access
69%
world 28%

What is Laboratoire de Mathématiques Jean Leray 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 #8,623 of 12,888 15.6%74 #10335

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

Where its research is concentrated relative to its size: Mathematics takes 39.2× the share of its output that it takes of world research.

  1. MathematicsField · 40.4 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: 0.03× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.35× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.04× its world share, 0 worksImmunology and Micro…Chemistry: 0.16× its world share, 0 worksChemistryComputer Science: 1.54× its world share, 10 worksComputer ScienceEarth and Planetary Sciences: 1.09× its world share, 2 worksEarth and Planetary …Engineering: 0.81× its world share, 11 worksEngineeringEnvironmental Science: 0.26× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.19× its world share, 1 worksMaterials ScienceMathematics: 39.24× its world share, 40 worksMathematicsPhysics and Astronomy: 4.42× its world share, 9 worksPhysics and AstronomyHealth Professions: 0.36× its world share, 1 worksHealth ProfessionsMedicine: 0.16× its world share, 3 worksMedicineArts and Humanities: 1.24× its world share, 3 worksArts and HumanitiesDecision Sciences: 1.27× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.39× its world share, 1 worksEconomics, Econometr…Psychology: 0.22× its world share, 1 worksPsychologySocial Sciences: 0.29× 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, 39.2×. Every wedge is a field page.

Who are the top researchers at Laboratoire de Mathématiques Jean Leray?

Ranked on the composite score, Manfred Lehn, Benoît Grébert and Gilles Carron lead among researchers whose main affiliation is Laboratoire de Mathématiques Jean Leray.

  1. 1 Manfred Lehn France · #379,730 worldwide 160 citations · 15 works
  2. 2 Benoît Grébert France · #380,924 worldwide 82 citations · 28 works
  3. 3 Gilles Carron France · #603,205 worldwide 82 citations · 34 works
  4. 4 Anne Philippe France · #653,866 worldwide 103 citations · 40 works
  5. 5 Évelyne Barbin France · #735,371 worldwide 10 citations · 18 works
  6. 6 Gabriel Rivière France · #795,082 worldwide 38 citations · 21 works
  7. 7 Monique Combescure France · #931,089 worldwide 83 citations · 28 works
  8. 8 Frédéric Lavancier France · #1,134,447 worldwide 58 citations · 26 works
  9. 9 Abdeljalil Nachaoui France · #1,215,986 worldwide 14 citations · 34 works
  10. 10 Christophe Berthon France · #1,284,432 worldwide 44 citations · 31 works
All ranked researchers at Laboratoire de Mathématiques Jean Leray

Which keywords describe research at Laboratoire de Mathématiques Jean Leray?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Numerical Methods, Inverse Problems, Porous Media, Ill-Posed Problems, Regularization Methods, Finite Element, Differential Operators and Spectral Theory.

▲ 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. Numerical Methods7▲ 99×3 topics
  2. Inverse Problems6▲ 61×3 topics
  3. Porous Media5▲ 44×4 topics
  4. Ill-Posed Problems5▲ 260×1 topic
  5. Regularization Methods5▲ 260×1 topic
  6. Finite Element4▲ 115×2 topics
  7. Differential Operators4▲ 349×1 topic
  8. Spectral Theory4▲ 349×1 topic
  9. Heterogeneous4▲ 122×1 topic
  10. Multiscale Methods4▲ 122×1 topic
  11. Dynamical Systems3▲ 58×3 topics
  12. Symplectic Geometry3▲ 107×2 topics
  13. Stability3▲ 16×2 topics
  14. K-Theory3▲ 145×2 topics
  15. Knot Invariants3▲ 225×1 topic
  16. Symplectic Topology3▲ 225×1 topic
  17. Deformation Quantization3▲ 196×1 topic
  18. Poisson Manifolds3▲ 196×1 topic
  19. Kinetic Theory3▲ 65×2 topics
  20. Optimal Transport3▲ 139×1 topic
  21. Ricci Curvature3▲ 139×1 topic
  22. Solitons2▲ 64×2 topics
  23. Kähler Metrics2▲ 213×1 topic
  24. Scalar Curvature2▲ 213×1 topic
  25. Adaptive Mesh Refinement2▲ 43×2 topics
  26. High-Order Schemes2▲ 43×2 topics
  27. Nonlinear Schrödinger Equation2▲ 47×2 topics
  28. Boltzmann Equation2▲ 120×1 topic
  29. Rarefied Flows2▲ 120×1 topic
  30. Global Existence2▲ 76×2 topics
  31. Global Well-Posedness2▲ 112×1 topic
  32. Nonlinear Equations2▲ 18×4 topics
  33. Scattering2▲ 112×1 topic
  34. Lagrangian Coherent Structures2▲ 95×1 topic
  35. Monte Carlo Simulation2▲ 11×3 topics
  36. Quantum Chaos2▲ 95×1 topic
  37. Radial Basis Functions2▲ 31×2 topics
  38. Boundary Value Problems2▲ 40×3 topics
  39. Ergodic Theory2▲ 70×2 topics
  40. Signal Processing2▲ 13×2 topics

Which research topics does Laboratoire de Mathématiques Jean Leray publish most on?

By volume in 2022–2025: Numerical methods in inverse problems, Spectral Theory in Mathematical Physics, Advanced Mathematical Modeling in Engineering and Geometric and Algebraic Topology.

Numerical methods in inv…5Numerical methods in inverse problems: 5 fractional worksSpectral Theory in Mathe…4Spectral Theory in Mathematical Physics: 4 fractional worksAdvanced Mathematical Mo…4Advanced Mathematical Modeling in Engineering: 4 fractional worksGeometric and Algebraic …3Geometric and Algebraic Topology: 3 fractional worksHomotopy and Cohomology in Algebraic Topology: 3 fractional worksGeometric Analysis and Curvature Flows: 3 fractional worksGeometry and complex man…2Geometry and complex manifolds: 2 fractional worksGas Dynamics and Kinetic Theory: 2 fractional worksAdvanced Mathematical Physics Problems: 2 fractional worksQuantum chaos and dynamical systems: 2 fractional works
Mathematical PhysicsComputational Theory and MathematicsGeometry and TopologyApplied Mathematics1 others

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

  1. 1 Numerical methods in inverse problems Mathematical Physics 5 works
  2. 2 Spectral Theory in Mathematical Physics Mathematical Physics 4 works
  3. 3 Advanced Mathematical Modeling in Engineering Computational Theory and Mathematics 4 works
  4. 4 Geometric and Algebraic Topology Geometry and Topology 3 works
  5. 5 Homotopy and Cohomology in Algebraic Topology Mathematical Physics 3 works
  6. 6 Geometric Analysis and Curvature Flows Applied Mathematics 3 works
  7. 7 Geometry and complex manifolds Geometry and Topology 2 works
  8. 8 Gas Dynamics and Kinetic Theory Applied Mathematics 2 works
  9. 9 Advanced Mathematical Physics Problems Mathematical Physics 2 works
  10. 10 Quantum chaos and dynamical systems Statistical and Nonlinear 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 available68.7%not open31.3%

World: 28% of research is openly available.

with international co-authors23.0%domestic only77.0%

World: 19% is written across borders.

How has Laboratoire de Mathématiques Jean Leray's research output changed?

Output in 2018–2022 was 21% 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 Nantes

All research institutions in Nantes

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.