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math.PR2025★ 6 cited
Extreme semilinear copulas
Fabrizio Durante, Juan Fernández-Sánchez, Manuel Úbeda-Flores
We study the extreme points (in the Krein-Milman sense) of the class of semilinear copulas and provide their characterization. Related results into the more general setting of conj…
math.PR2025★ 3 cited
Extreme values of the mass distribution associated with a tetravariate quasi-copula
Manuel Úbeda-Flores
In this note we study the extremes of the mass distribution associated with a tetravariate quasi-copula and compare our results with the bi- and trivariate cases, showing the impor…