fundamental group

(redirected from Fundamental groupoid)

fundamental group

[¦fən·də¦ment·əl ′grüp]
(communications)
In wire communications, a group of trunks that connect each local or trunk switching center to a trunk switching center of higher rank on which it homes; the term also applies to groups that interconnect zone centers.
(mathematics)
For a topological space, the group of homotopy classes of all closed paths about a point in the space; this group yields information about the number and type of “holes” in a surface.
References in periodicals archive ?
He covers separability, idempotent and profinite spaces, the Boolean spectrum, Galois theory over a connected base, separable closure and the fundamental groupoid, categorical Galois theory and the Galois correspondence.

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