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math.SP2021
Stochastic Matrices Realising the Boundary of the Karpelevi\v c Region
Stephen Kirkland, Helena Šmigoc
A celebrated result of Karpelevi\v c describes the collection of all eigenvalues arising from the stochastic matrices of order The boundary of consists of roots o…
math.OC2021★ 6 cited
Symmetric Nonnegative Matrix Trifactorization
Damjana Kokol Bukovšek, Helena Šmigoc
The Symmetric Nonnegative Matrix Trifactorization (SN-Trifactorization) is a factorization of an nonnegative symmetric matrix of the form , where is a $…