Discrete Mathematics & Theoretical Computer Science, Vol 9, No 2 (2007)

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Noncommutative symmetric functions associated with a code, Lazard elimination, and Witt vectors

Jean-Gabriel Luque, Jean-Yves Thibon


The construction of the universal ring of Witt vectors is related to Lazard's factorizations of free monoids by means of a noncommutative analogue. This is done by associating to a code a specialization of noncommutative symmetric functions.

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