Reflections and quotients in Coxeter groups
arXiv:2405.10985
Abstract
We present a formula relating the set of left descents of an element of a Coxeter group with the sets of left descents of its projections on maximal quotients indexed by simple right descents. This formula is an instance of a general result involving quotients and descents.
arXiv admin note: substantial text overlap with arXiv:2401.02324