Three themes in the work of Charles Ehresmann: local-to-global; groupoids; higher dimensions

Volume 76 / 2007

Ronald Brown Banach Center Publications 76 (2007), 51-63 MSC: Primary 01A60, 53C29; Secondary 81Q70, 22A22, 55P15. DOI: 10.4064/bc76-0-3


This paper illustrates the themes of the title in terms of: van Kampen type theorems for the fundamental groupoid; holonomy and monodromy groupoids; and higher homotopy groupoids. Interaction with work of the writer is explored.


  • Ronald BrownUniversity of Wales, Bangor
    Dean St.
    Bangor, Gwynedd LL57 1UT, U.K.

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