$Z$-mappings and $C^*$-embeddings
$Z$-mappings and $C^*$-embeddings
Recently, Comfort and Negrepontis investigated the interesting properties of proper C*-pair [1].In this paper, we shall give in 1 a necessary and sufficient condition that X Y is C*-embedded in X flY and give in 2 partial answers to the problems with respect to the product spaces raised by Morita.Throughout …