Homology of configuration spaces in positive characteristic via point-set constructions
- Authors
- N. I., Victor Roca i Lucio.
- Publication
- Preprint v1, 47 p. (2026).
- Software
- Software.
- PDF.
- arXiv:2606.26802
- arXiv:2606.26802.
- hal-05670310
- hal-05670310.
Najib Idrissi
Maître de conférences (HDR) in mathematics
Maître de conférences (HDR) at Université Paris Cité — similar to associate professor; HDR is the French habilitation to supervise doctoral research.
Institut de Mathématiques de Jussieu–Paris Rive Gauche (IMJ-PRG), deputy manager of the team-project Algebraic Geometry & Topology (TGA)
Scientific coordinator of the ANR Young Researcher grant Structure and Homotopy of Configuration Spaces (SHoCoS)
Junior Member of the Institut Universitaire de France (IUF) for 2025–2030
My main mathematical interests are in the fields of operads, as well as in their applications to algebraic topology and homological algebra. I am especially interested in the study of configuration spaces of manifolds, their links to graph complexes, and the invariants they define. These days, I am also interested in the representation stability phenomenon.
See also: arXiv, HAL, MathSciNet, zbMATH, ORCID.
My full last name is “Idrissi-Kaïtouni” and you may find this spelling in some places, e.g., my email address.
Contact
- Email: najib.idrissi-kaitouni@u-pariscite.fr
- Address: Bâtiment Sophie Germain, 8 place Aurélie Nemours, F-75013 Paris, France
- Office number: SG-7032 (7th floor)
- Phone: (+33) 01 57 27 91 16
Research
Preprints
Plethysm for characters of relative operads and PROPs
- Authors
- N. I., Erik Lindell.
- Publication
- Preprint v2, 34 p. (2025).
- Software
- Software.
- PDF.
- arXiv:2505.05910
- arXiv:2505.05910.
- hal-05061606
- hal-05061606.
- Source
- Source.
A model for framed configuration spaces of points
- Authors
- Ricardo Campos, Julien Ducoulombier, N. I., Thomas Willwacher.
- Publication
- Preprint v2, 47 p. (2025).
- PDF.
- arXiv:1807.08319
- arXiv:1807.08319.
- hal-03835341
- hal-03835341.
Configuration Spaces of Surfaces
- Authors
- Ricardo Campos, N. I., Thomas Willwacher.
- Publication
- Preprint v2, 50 p. (2020).
- PDF.
- arXiv:1911.12281
- arXiv:1911.12281.
- hal-02423726
- hal-02423726.
Publications
Homotopy Prefactorization Algebras
- Authors
- N. I., Eugene Rabinovich.
- Publication
- Res. Math. Sci., 11.45 (2024).
- PDF.
- 10.1007/s40687-024-00456-9
- 10.1007/s40687-024-00456-9.
- arXiv:2304.13011
- arXiv:2304.13011.
- hal-04082483
- hal-04082483.
- MR4763063
- MR4763063.
- Zbl07875603
- Zbl07875603.
Non-formality of Voronov's Swiss-Cheese operads
- Authors
- N. I., Renato Vasconcellos Vieira.
- Publication
- Q. J. Math., 75.1, pp. 63–95 (2024).
- PDF.
- 10.1093/qmath/haad041
- 10.1093/qmath/haad041.
- arXiv:2303.16979
- arXiv:2303.16979.
- hal-04053257
- hal-04053257.
- MR4732946
- MR4732946.
- Zbl07936839
- Zbl07936839.
- Source
- Source.
Configuration Spaces of Manifolds with Boundary
- Authors
- Ricardo Campos, N. I., Pascal Lambrechts, Thomas Willwacher.
- Publication
- Astérisque, vol. 449, 134 p., Paris: SMF, ISBN: 978-2-85629-990-6 (2024).
- PDF.
- 10.24033/ast.1222
- 10.24033/ast.1222.
- arXiv:1802.00716
- arXiv:1802.00716.
- hal-01721634
- hal-01721634.
- MR4764220
- MR4764220.
- Zbl07882597
- Zbl07882597.
Curved Koszul duality of algebras over unital versions of binary operads
- Author
- N. I.
- Publication
- J. Pure Appl. Algebra, 227.3 (2023).
- PDF.
- 10.1016/j.jpaa.2022.107208
- 10.1016/j.jpaa.2022.107208.
- arXiv:1805.01853
- arXiv:1805.01853.
- hal-01786218
- hal-01786218.
- MR4477956
- MR4477956.
- Zbl07595193
- Zbl07595193.
Real Homotopy of Configuration Spaces: Peccot Lecture, Collège de France, March & May 2020
- Author
- N. I.
- Publication
- Lecture Notes in Mathematics, vol. 2303, 210 p., Cham: Springer, ISBN: 978-3-031-04427-4 (2022).
- 10.1007/978-3-031-04428-1
- 10.1007/978-3-031-04428-1.
- hal-03821309
- hal-03821309.
- MR4461096
- MR4461096.
- Zbl07529469
- Zbl07529469.
Boardman–Vogt resolutions and bar/cobar constructions of (co)operadic (co)bimodules
- Authors
- Ricardo Campos, Julien Ducoulombier, N. I.
- Publication
- High. Struct., 5.1, pp. 293–366 (2021).
- PDF.
- 10.21136/HS.2021.09
- 10.21136/HS.2021.09.
- arXiv:1911.09474
- arXiv:1911.09474.
- hal-01786218
- hal-01786218.
- MR4367224
- MR4367224.
- Zbl7482172
- Zbl7482172.
Formality of a higher-codimensional Swiss-Cheese operad
- Author
- N. I.
- Publication
- Algebr. Geom. Topol., 22.1, pp. 55–111 (2022).
- PDF.
- 10.2140/agt.2022.22.55
- 10.2140/agt.2022.22.55.
- arXiv:1809.07667
- arXiv:1809.07667.
- hal-01878406
- hal-01878406.
- MR4413816
- MR4413816.
- Zbl07518301
- Zbl07518301.
The Lambrechts–Stanley Model of Configuration Spaces
- Author
- N. I.
- Publication
- Invent. Math., 216.1, pp. 1–68 (2019).
- PDF.
- 10.1007/s00222-018-0842-9
- 10.1007/s00222-018-0842-9.
- arXiv:1608.08054
- arXiv:1608.08054.
- hal-01438861
- hal-01438861.
- MR3935037
- MR3935037.
- Zbl07051043
- Zbl07051043.
Swiss-Cheese Operad and Drinfeld Center
- Author
- N. I.
- Publication
- Israel J. Math., 221.2, pp. 941–972 (2017).
- PDF.
- 10.1007/s11856-017-1579-7
- 10.1007/s11856-017-1579-7.
- arXiv:1507.06844
- arXiv:1507.06844.
- hal-01438863
- hal-01438863.
- MR3704940
- MR3704940.
- Zbl06808424
- Zbl06808424.
Opérades et Structures Commutatives à Homotopie Près
- Author
- N. I.
- Publication
- Grad. J. Math., 1.1, pp. 9–17 (2016).
- PDF.
- hal-03997161
- hal-03997161.
- MR3848667
- MR3848667.
- Zbl1497.18028
- Zbl1497.18028.
- Journal
- Journal.
Theses
Structure of Configuration Spaces
- Author
- N. I.
- Publication
- Habilitation à Diriger des Recherches (HDR), Université Paris Cité (2025).
- PDF.
- Source
- Source.
- tel-05082275
- tel-05082275.
- Defense
- Defense.
Operadic Formality and Homotopy of Configuration Spaces
- Author
- N. I.
- Publication
- Doctoral thesis, Université de Lille (2017).
- PDF.
- Source
- Source.
- tel-01731389
- tel-01731389.
- 2017LIL10078
- 2017LIL10078.
- Defense
- Defense.
Homologie et complexes de déformations d’opérades $E_n$
- Author
- N. I.
- Publication
- Master's thesis, Université Paris Diderot (2014).
- PDF.
Software
- Authors
- N. I., Victor Roca i Lucio.
- Language
- Python, SageMath
- License
- GPL-3.0
- Paper
- Paper.
- 10.5281/zenodo.20843321
- 10.5281/zenodo.20843321.
- Source
- Source.
- SWH
- SWH.
Teaching for 2026−2027
- Institution
- Université Paris Cité.
- Cursus
- M2 Mathématiques Fondamentales (S1).
- Responsibilities
- Lectures: 24h.
Algorithmes et Programmation 3 (2026−2027)
- Institution
- Université Paris Cité.
- Cursus
- L2 Maths (S1).
- Responsibilities
- Lectures: 27h, Organization: 9h.
- Notes
- Notes.
Recent & upcoming talks
- Title
- TBA.
- Event
- International Conference on Operad Theory and Related Topics.
- Location
- TianYuan Mathematics Research Center (TYMRC).
- On
- On [TBA].
Moduli spaces and graph complexes in algebra, geometry and physics @ Diablerets
- Title
- Homology of configuration spaces in positive characteristic via point-set constructions.
- Event
- Moduli spaces and graph complexes in algebra, geometry and physics.
- Location
- Diablerets.
- On
- On .
- Event page
- Event page.
Séminaire de géométrie @ Institut de Mathématiques de Jussieu-Paris Rive Gauche
- Title
- Introduction aux espaces de configuration des variétés.
- Event
- Séminaire de géométrie.
- Location
- Institut de Mathématiques de Jussieu-Paris Rive Gauche.
- On
- On .
- Event page
- Event page.
- Notes
- Notes.
Séminaire ART @ Université de Strasbourg
- Title
- Pléthysme pour les opérades colorées et les prop(érade)s.
- Event
- Séminaire ART.
- Location
- Université de Strasbourg.
- On
- On .
- Related
- Related.
- Event page
- Event page.
- Notes
- Notes.
Soutenance Habilitation à Diriger des Recherches (HDR) @ Université Paris Cité
Recent blog posts
Git for Mathematicians (3b): The Practice [daily work]
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