A characterization of sets of discontinuity points of separately continuous functions of many variables on products of metrizable spaces
Maslyuchenko, V. K. · Mykhaylyuk, V. V.
الأصل · EN
It is shown that a set in product of n metrizable spaces is the discontinuity points set of some separately continuous function if and only if this set can be represented as the union of a sequence of Fσ-sets which are locally projectively meager.
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