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math.CO2003
Standard paths in another composition poset
Jan Snellman
Bergeron, Bousquet-Melou and Dulucq enumerated paths in the Hasse diagram of the following poset: the underlying set is that of all compositions, and a composition μcovers another…
math.CO2003★ 1 cited
Enumeration of concave integer partitions
Jan Snellman, Michael Paulsen
An integer partition λof n corresponds, via its Ferrers diagram, to an artinian monomial ideal I of colength n in the polynomial ring on two variables. If the partition λcorrespond…