Chris Berg ; Nantel Bergeron ; Sandeep Bhargava ; Franco Saliola
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Primitive orthogonal idempotents for R-trivial monoids
dmtcs:2896 -
Discrete Mathematics & Theoretical Computer Science,
January 1, 2011,
DMTCS Proceedings vol. AO, 23rd International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2011)
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https://doi.org/10.46298/dmtcs.2896
Primitive orthogonal idempotents for R-trivial monoidsArticle
3 Laboratoire de combinatoire et d'informatique mathématique [Montréal]
We construct a recursive formula for a complete system of primitive orthogonal idempotents for any R-trivial monoid. This uses the newly proved equivalence between the notions of R-trivial monoid and weakly ordered monoid.