Small Cancellation

Some articles on small cancellation:

Small Cancellation Theory - History
... Some ideas underlying the small cancellation theory go back to the work of Max Dehn in 1910s ... A 1949 paper of Tartakovskii was an immediate precursor for small cancellation theory this paper provided a solution of the word problem for a class of groups satisfying a complicated set of ... The standard version of small cancellation theory, as it is used today, was developed by Martin Greendlinger in a series of papers in early 1960s, who primarily dealt with the "metric" small cancellation ...
Basic Results of Small Cancellation Theory - Greendlinger's Lemma
... The main result regarding the metric small cancellation condition is the following statement (see Theorem 4.4 in Ch ... presentation as above satisfying the C'(λ) small cancellation condition where 0 ≤ λ ≤ 1/6 ... There one defines a combinatorial notion of curvature (which, by the small cancellation assumptions, is negative at every interior vertex), and one then obtains ...

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