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Properties of the intersection ideal M ∩ N revisited

Weiss T.

Bulletin of the Polish Academy of Sciences. Mathematics

2017

Vol. 65, no. 2

107--111

We investigate various properties of the intersection ideal M∩N of subsets of the reals that are related to the translations of its members. We are also concerned with cardinal coefficients associated with the ideal M∩N.

The uncountable cofinality of the automorphism group of the countable universal distributive lattice

Droste M., Truss J. K.

Demonstratio Mathematica

2011

Vol. 44, nr 3

473-479

We show that the automorphism group of the countable universal distributive lattice has strong uncountable cofinality, and we adapt the method to deduce the strong uncountable cofinality of the automorphism group of the countable universal generalized boolean algebra.