AbstractWe show that every countable-compact-covering map with compact fibers from a separable metric space X onto a first-countable, regular space Y is compact-covering. We also show that the assumption that ƒ is countable-compact-covering cannot be replaced by a weaker condition
1. Throughout this paper by a space we shall mean a completely regular T1-space, and by N the set of...
Abstract. We introduce the class of countably I-compact spaces as a proper subclass of countably S-c...
summary:We prove a number of results on star covering properties which may be regarded as either gen...
AbstractWe show that every countable-compact-covering map with compact fibers from a separable metri...
AbstractLet X and Y be separable and metrizable spaces. Suppose that the continuous and onto mapping...
Mappings generated by covering maps of metric spaces are considered in the spaces of compact subsets...
Mappings generated by covering maps of metric spaces are considered in the spaces of compact subsets...
summary:The main purpose of this paper is to establish general conditions under which $T_2$-spaces a...
summary:The main purpose of this paper is to establish general conditions under which $T_2$-spaces a...
AbstractAn intrinsic characterization of the range onto which each open map from each metric space b...
summary:In the realm of metric spaces we show in ZF that: (i) A metric space is compact if and only ...
AbstractLet X and Y be separable and metrizable spaces. Suppose that the continuous and onto mapping...
Abstract. The main purpose of this paper is to establish general conditions under which T2-spaces ar...
Questions on quotient compact images of metric spaces, and symmetric spaces (Yoshio Tanaka) In this ...
Abstract. We introduce the class of countably I-compact spaces as a proper subclass of countably S-c...
1. Throughout this paper by a space we shall mean a completely regular T1-space, and by N the set of...
Abstract. We introduce the class of countably I-compact spaces as a proper subclass of countably S-c...
summary:We prove a number of results on star covering properties which may be regarded as either gen...
AbstractWe show that every countable-compact-covering map with compact fibers from a separable metri...
AbstractLet X and Y be separable and metrizable spaces. Suppose that the continuous and onto mapping...
Mappings generated by covering maps of metric spaces are considered in the spaces of compact subsets...
Mappings generated by covering maps of metric spaces are considered in the spaces of compact subsets...
summary:The main purpose of this paper is to establish general conditions under which $T_2$-spaces a...
summary:The main purpose of this paper is to establish general conditions under which $T_2$-spaces a...
AbstractAn intrinsic characterization of the range onto which each open map from each metric space b...
summary:In the realm of metric spaces we show in ZF that: (i) A metric space is compact if and only ...
AbstractLet X and Y be separable and metrizable spaces. Suppose that the continuous and onto mapping...
Abstract. The main purpose of this paper is to establish general conditions under which T2-spaces ar...
Questions on quotient compact images of metric spaces, and symmetric spaces (Yoshio Tanaka) In this ...
Abstract. We introduce the class of countably I-compact spaces as a proper subclass of countably S-c...
1. Throughout this paper by a space we shall mean a completely regular T1-space, and by N the set of...
Abstract. We introduce the class of countably I-compact spaces as a proper subclass of countably S-c...
summary:We prove a number of results on star covering properties which may be regarded as either gen...
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