nLab André Haefliger

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Selected writings

• André Haefliger, Differentiable Embeddings of $S^n$ in $S^{n+q}$ for $q \gt 2$, Annals of Mathematics Second Series, Vol. 83, No. 3 (May, 1966), pp. 402-436 (jstor:1970475)

• M. Bridson and A. Haefliger, 1999, Metric Spaces of Non-Positive Curvature, number 31 in Grundlehren der Math. Wiss, Springer.

Introducing Haefliger groupoids:

• André Haefliger, Homotopy and integrability, In: N.H. Kuiper (ed.) Manifolds — Amsterdam 1970. Lecture Notes in Mathematics, vol 197. Springer 1971 (doi:10.1007/BFb0068615)

On orbifolds:

• André Haefliger, Groupoides d’holonomie et classifiants, Astérisque no. 116 (1984), p. 70-97 (numdam:AST_1984__116__70_0/)

On orbispaces:

• André Haefliger, Groupoides d’holonomie et classifiants, Astérisque no. 116 (1984), p. 70-97 (numdam:AST_1984__116__70_0)

• André Haefliger, Orbi-Espaces, In: E. Ghys, P. de la Harpe (eds.), Sur les Groupes Hyperboliques d’après Mikhael Gromov, Progress in Mathematics, vol 83. Birkhäuser 1990 (doi:10.1007/978-1-4684-9167-8_11)

• André Haefliger, Complexes of Groups and Orbihedra, in: E. Ghys, A. Haefliger, A Verjovsky (eds.), Proceedings of the Group Theory from a Geometrical Viewpoint, ICTP, Trieste, Italy , 26 March – 6 April 1990_, World Scientific 1991 (doi:10.1142/1235)

On mapping stacks between orbifolds:

• André Haefliger, On the space of morphisms between étale groupoids, In: P. Robert Kotiuga (ed.) A Celebration of the Mathematical Legacy of Raoul Bott (arXiv:0707.4673, ams:crmp-50)