Three families of toric rings arising from posets or graphs with small class groups
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DOI: 10.1016/j.jpaa.2022.107079
Abstract: The main objects of the present paper are (i) Hibi rings (toric rings arising from order polytopes of posets), (ii) stable set rings (toric rings arising from stable set polytopes of perfect graphs), and (iii)… read more here.
Keywords: small class; toric rings; class groups; posets graphs ... See more keywords