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math.ST2026
Dense alternating sign matrices and imprecise copulas
Tomaž Košir, Elisa Perrone, Nik Stopar
In this paper, we study discrete quasi-copulas and discrete imprecise copulas of minimal range, which naturally correspond to alternating sign matrices. We identify dense alternati…
stat.ME2026
Characterization of multi-way binary tables with uniform margins and fixed correlations
Roberto Fontana, Elisa Perrone, Fabio Rapallo
In many applications involving binary variables, only pairwise dependence measures, such as correlations, are available. However, for multi-way tables involving more than two varia…