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Shaked-Monderer, Naomi
Linear algebra and its applications, 03/2018, Volume: 541Journal Article
In this corrigendum, an error in the proof of Theorem 6.4 in Shaked-Monderer (2016) 2 is pointed out. This theorem states that every graph Tn consisting of n−2 triangles sharing a common base is SPN. We have an alternative proof for the case n=5, but for all n>5 it remains open whether Tn is SPN. As a result, the question whether K2,n, n>4, is SPN also remains open.
