Cahiers de Topologie et Géométrie Différentielle Catégoriques - ISSN 1245-530X (formerly ISSN 0008-0004)

The "Cahiers" are a quarterly Journal with one Volume a year (divided in 4 issues). They publish original papers in Mathematics, the main research subject being pure category theory, together with its applications in topology, differential geometry, algebraic geometry, universal algebra, homological algebra, algebraic topology.

Manuscripts submitted for publication should be sent to one of the editors as a pdf file, with a copy to Andrée Ehresmann (

Directeur de la publication : Andrée Charles EHRESMANN, Professeur Emérite Université de Picardie Jules Verne.

All correspondence concerning the subscriptions is to be sent to

Mme Ehresmann, Faculté des Sciences, Mathématiques LAMFA

33 rue Saint-Leu F-80039 Amiens. France


Subscription price : for 2016 or for 2017 : 105 €


1. Editorial Board



A. C. Ehresmann


Faculté des Sciences, Mathématiques LAMFA, 33 rue Saint-Leu, F-80039 Amiens. France

  M. Gran Université catholique de Louvain, Institut de Recherche en Mathématique et Physique, Chemin du Cyclotron 2, 1348 Louvain-la-Neuve, Belgique

R. Guitart

Université Paris Diderot Paris 7. IMJ-PRG. UMR 7586 Bâtiment Sophie Germain. Case 7012, 75205 Paris Cedex 13, France




  J. Adamek Technical University Braunschweig, Allemagne,
  C. Berger Université de Nice-Sophia Antipolis, France
  M. Bunge Math. Dept., McGill University, Montréal, Canada
  M.M Clementino Universidade de Coimbra, Portugal
  Z. Janelidze Stellenbosch University, Afrique du Sud
  P. Johnstone DPMMS, Centre for Mathematical Sciences, Cambridge, U.K
  A. Kock Matematisk Institut, Aarhus Universitet Aarhus, Denmark
  S. Lack Macquarie University, Australie
  S. Mantovani Universita degli Studi di Milano, Italie
  T. Porter University of Wales, Bangor, UK


Université Paul Sabatier Toulouse, France
  E. Riehl John Hopkins University, Baltimore MD U.S.A.
  R. Street School of Math. and Comp. Sc., Macquarie University, Australie.


2. Backsets

All the papers published in the "Cahiers" are freely accessible at most two years after their publication:

For Volumes I to VII:

For volumes VIII to XLIX:

For volumes L to LVI: The pdf files of each issue are freely downloadable from this site, cf. "Recent Volumes", which also contains the table of contents of the latest volume LVII (2016).

Are also freely downloadable the Supplements, published from 1980 to 1984, devoted to the collected works of the mathematician Charles Ehresmann (1905-1979), who created the Cahiers in 1957. These Supplements consist of 7 books (edited and commented by Andrée Ehresmann) containing all the articles de C. Ehresmann, with long comments (in English) updating these papers.

Charles Ehresmann: Oeuvres complètes et commentées
  Partie I (1 volume, 630 pages) Topologie Algébrique et Géométrie Différentielle.
  Partie II (2 volumes, 800 pages) Structures locales et catégories ordonnées.
  Partie III (2 volumes, 900 pages) Catégories internes et Fibrations.
........ Partie IV (2 volumes, 850 pages) Esquisses, Complétions, Enrichissements.


3. Guide to Authors

To reduce publication delays, papers accepted for the 'Cahiers' are reproduced directly from the files or the photo-ready manuscripts provided by the Authors. So Authors are required to send a .pdf file and 1 laser printed copy, satisfying the following format requirements.

Left margin 4,1 cm
Width of the page 12,8 cm between the margins
Top margin 6,1 cm before the first line of the text.
Length from the first to the last line 18,5 cm (without headlines and page numbers, the latter being only added with a pencil)
Police Times New Roman, 12 points.
Interline 0,49 cm (with larger interlines before and after centered formulas and between Sections)
Section titles in bold face, as well as the words 'Proposition', 'Theorem', 'Definition'..., with the statements of these in italics.
Diagrams and figures drawn very carefully and presented in the text, as they should appear after printing.
References numbered and listed at the end of the paper in the alphabetic order of their authors, and with the standard abbreviations. No hyperlinks
Address of the author(s) at the end of the paper.
First page The title and the name of the author(s) (and the headlines and page numbers) will be added by the Editors, so that the length of this page from the first to the last line should be only 15 cm.
Abstract It should begin by an Abstract in French and an abstract in English (from 5 to 15 lines according to the length of the paper), presented with a left margin of 1,5 cm more than the current margin, followed by the key words and the MS Classification. (Foreign authors may ask the editor for a French translation of their abstract.)

ATeX-template and a pdf-template can be found here.

For more information, please contact: Mme Ehresmann