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math.SP2019★ 3 cited
Completely positive factorizations associated with Euclidean distance matrices corresponding to an arithmetic progression
Damjana Kokol Bukovšek, Thomas Laffey, Helena Šmigoc
Euclidean distance matrices corresponding to an arithmetic progression have rich spectral and structural properties. We exploit those properties to develop completely positive fact…
math.CO2019
The strong spectral property for graphs
Jephian C. -H. Lin, Polona Oblak, Helena Šmigoc
We introduce the set of all simple graphs with the property that each symmetric matrix corresponding to a graph has the st…