Inversion formula for the growth function of a cancellative monoid

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RIMS - 1740 Inversion formula for the growth function of a cancellative monoid

Let (M, deg) be a cancellative monoid M equipped with a discrete degree map deg :M →R≥0, and let PM,deg(t) := ∑ u∈M/∼t deg(u) be its generating series, called the growth function of M . We show the inversion formula PM,deg(t) ·NM,deg(t) = 1 where the second factor of the formula is given by NM,deg(t) := 1 + ∑ T∈Tmcm(M,I0)(−1) #J1+···+#Jn−n+1 ∑ ∆∈|T | t , which we call the skew-growth function o...

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ژورنال

عنوان ژورنال: Journal of Algebra

سال: 2013

ISSN: 0021-8693

DOI: 10.1016/j.jalgebra.2013.01.037