A residual derivative on preordered sets generalizes Frattini and Cantor-Bendixson derivatives and yields a complete characterization of the first two Cantor-Bendixson levels in dual algebraic coframes via residual structure.
Near-discreteness of modules and spaces as measured by gabriel and cantor
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Residual stratification and the Cantor-Bendixson structures of dual algebraic coframes
A residual derivative on preordered sets generalizes Frattini and Cantor-Bendixson derivatives and yields a complete characterization of the first two Cantor-Bendixson levels in dual algebraic coframes via residual structure.