An algorithm computes joins in the weak order of type B Coxeter groups, extending Markowsky's algorithm to signed permutations and confirming Dyer's geometric conjecture.
Reading (2016): Finite Coxeter Groups and the Weak Order
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Computing Joins in the Weak Order of Type B Coxeter Groups: an Algorithmic Approach
An algorithm computes joins in the weak order of type B Coxeter groups, extending Markowsky's algorithm to signed permutations and confirming Dyer's geometric conjecture.