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math.CO2005
String rewriting for Double Coset Systems
Ronald Brown, Neil Ghani, Anne Heyworth +1
In this paper we show how string rewriting methods can be applied to give a new method of computing double cosets. Previous methods for double cosets were enumerative and thus rest…
math.CO1999
Using Rewriting Systems to Compute Kan Extensions and Induced Actions of Categories
Ronald Brown, Anne Heyworth
The basic method of rewriting for words in a free monoid given a monoid presentation is extended to rewriting for paths in a free category given a `Kan extension presentation'. Thi…