We give a simple characterization of special matchings in lower Bruhat intervals (that is, intervals starting from the identity element) of a Coxeter group. As a byproduct, we obtain some results on the action of special matchings. (
A simple characterization of special matchings in lower Bruhat intervals
fabrizio caselli;
2018
Abstract
We give a simple characterization of special matchings in lower Bruhat intervals (that is, intervals starting from the identity element) of a Coxeter group. As a byproduct, we obtain some results on the action of special matchings. (File in questo prodotto:
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DiscreteMath341-2018.pdf
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