The ''Cahiers de Topologie et Géométrie Différentielle Catégoriques'' (''
French'': ''Notebooks of categorical topology and categorical differential geometry'') is a French
mathematical
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
scientific journal established by
Charles Ehresmann in 1957.
[.] It concentrates on
category theory "and its applications,
pecially in
topology
In mathematics, topology (from the Greek words , and ) is concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling, and bending; that is, without closing ...
and
differential geometry". Its older papers (two years or more after publication) are freely available on the internet through the French NUMDAM service.
It was originally published by the
Institut Henri Poincaré
The Henri Poincaré Institute (or IHP for ''Institut Henri Poincaré'') is a mathematics research institute part of Sorbonne University, in association with the Centre national de la recherche scientifique (CNRS). It is located in the 5th arrond ...
under the name ''Cahiers de Topologie''; after the first volume, Ehresmann changed the publisher to the Institut Henri Poincaré and later Dunod/Bordas. In the eighth volume he changed the name to ''Cahiers de Topologie et Géométrie Différentielle''.
[.] After Ehresmann's death in 1979 the editorship passed to his wife
Andrée Ehresmann
Andrée Ehresmann (born Andrée Bastiani; 1935) is a French mathematician specialising in category theory.
Education and career
Ehresmann was a researcher at CNRS from 1957 to 1963. She was awarded a Ph.D. in 1962 at University of Paris unde ...
; in 1984, at the suggestion of René Guitart, the name was changed again, to add "Catégoriques".
References
External links
Official website as of January 2018* Archive a
NumdamVolumes 1 (1957) - 7 (1965) : ''Séminaire Ehresmann. Topologie et géométrie différentielle''Volumes 8 (1966) - 52 (2011) : ''Cahiers de Topologie et Géométrie Différentielle Catégoriques''
maintained at the electronic journal
Theory and Applications of Categories
'
Mathematics journals
Publications established in 1957
Quarterly journals
Multilingual journals
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