5 citations · 5 across the 2 of their papers we have counts for
2 papers
math.AC2015★ 5 cited
Alexander duality for monomial ideals associated with isotone maps between posets
Juergen Herzog, Ayesha Asloob Qureshi, Akihiro Shikama
For a pair of finite posets the generators of the ideal correspond bijectively to the isotone maps from to . In this note we determine all pairs for…
math.AC2015
Toric rings of nonsimple polyominoes
Akihiro Shikama
It is known that toric ring of a simple polyomino is ring homomorphic to a edge ring of a weakly chordal bipartite graph. In this paper we identify the toric ring of nonsimple poly…