Toric rings of nonsimple polyominoes
classification
🧮 math.AC
keywords
ringtoricnonsimplepolyominoesrectanglebipartitechordaledge
read the original abstract
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 polyominoes which are of the form "rectangle minus rectangle".
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