Browsing Institutt for matematiske fag by Author "Nica, Alexandru"
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Multiplicative and semi-multiplicative functions on non-crossing partitions, and relations to cumulants
Ebrahimi-Fard, Kurusch; Celestino, Adrián; Witzman, Leon; Perales, Daniel; Nica, Alexandru (Peer reviewed; Journal article, 2023)We consider the group (Ǧ, ∗)of unitized multiplicative functions in the incidence algebra of non-crossing partitions, where “∗” denotes the convolution operation. We introduce a larger group (Ǧ, ∗) of unitized functions ...