Indestructibly productively Lindelöf and Menger function spaces
英文摘要:
For a Tychonoff space $X$ and a family $λ$ of subsets of $X$, we denote by $C_λ(X)$ the $T_1$-space of all real-valued continuous functions on $X$ with the $λ$ -open topology. A topological space is productively Lindelöf if its product with every Lindelöf space is Lindelöf. A space is indestructibly productively Lindelöf if it is productively Lindelöf in any extension by countably closed forcing. In this paper, we study indestructibly productively Lindelöf and Menger function space $C_λ(X)$.
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