Homeotopy groups of 3-manifolds---an isomorphism theorem
نویسندگان
چکیده
منابع مشابه
The Even Isomorphism Theorem for Coxeter Groups
Coxeter groups have presentations 〈S : (st)st∀s, t ∈ S〉 where for all s, t ∈ S, mst ∈ {1, 2, . . . ,∞}, mst = mts and mst = 1 if and only if s = t. A fundamental question in the theory of Coxeter groups is: Given two such “Coxeter” presentations, do they present the same group? There are two known ways to change a Coxeter presentation, generally referred to as twisting and simplex exchange. We ...
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ژورنال
عنوان ژورنال: Colloquium Mathematicum
سال: 1987
ISSN: 0010-1354,1730-6302
DOI: 10.4064/cm-53-2-199-204