I PROTASOV, S SLOBODIANIUK - arXiv preprint arXiv:1408.5607, 2014 - researchgate.net
Every infinite group G of regular cardinality can be partitioned G= A1∪ A2 so that G= FA1,
G= FA2 for every subset F⊂ G of cardinality| F|<| G|. In [3, Problem 13.45], the first author …