$Ps$-normal and $Ps$-Tychonoff spaces

Sagarmoy Bag, Ram Chandra Manna, Sourav Kanti Patra

A space $X$ is called $Ps$-normal($Ps$-Tychonoff) space if there exists a normal(Tychonoff) space $Y$ and a bijection $f:X\mapsto Y$ such that $f{|}_K:K\mapsto f(K)$ is homeomo…