The continuous $d$-open homomorphism images and subgroups of $\mathbb{R}$-factorizabile paratopological groups

Li-Hong Xie, Pengfei Yan

In this paper, we prove that: (1) Let $f:G\to H$ be a continuous $d$-open surjective homomorphism; if $G$ is an $\mathbb{R}$-factorizabile paratopological group, then so is…