AbstractWe solve two problems posed by E. Michael (1981) concerning whether certain compact-covering maps are inductively perfect, we generalize a theorem of A. Ostrovsky on a condition under which tri-quotient maps are inductively perfect and we present an example which answers a more recent question of Michael in the same general area
The following result has long been known to Russians and is considered elementary, but the proof doe...
The following result has long been known to Russians and is considered elementary, but the proof doe...
summary:For a topological space $X$ let $\Cal K (X)$ be the set of all compact subsets of $X$. The p...
AbstractWe solve two problems posed by E. Michael (1981) concerning whether certain compact-covering...
AbstractGeneralizing the result of Arhangel'skii that each open map with Čech-complete domain is com...
AbstractWe give some conditions under which triquotient maps are inductively perfect
AbstractGeneralizing the result of Arhangel'skii that each open map with Čech-complete domain is com...
AbstractThe purpose of this note is to study s-covering maps f:X→Y with compact or more generally wi...
AbstractThe purpose of this note is to study s-covering maps f:X→Y with compact or more generally wi...
summary:For a topological space $X$ let $\Cal K (X)$ be the set of all compact subsets of $X$. The p...
AbstractLet X and Y be separable and metrizable spaces. Suppose that the continuous and onto mapping...
AbstractWe show that every countable-compact-covering map with compact fibers from a separable metri...
AbstractWe give a new proof that, if f : X → Y is a tri-quotient map and X is partition-complete, th...
We establish a covering criterion involving a neighbourhood system and ideals of open sets which yie...
summary:Topologically maximal pretopologies, paratopologies and pseudotopologies are characterized i...
The following result has long been known to Russians and is considered elementary, but the proof doe...
The following result has long been known to Russians and is considered elementary, but the proof doe...
summary:For a topological space $X$ let $\Cal K (X)$ be the set of all compact subsets of $X$. The p...
AbstractWe solve two problems posed by E. Michael (1981) concerning whether certain compact-covering...
AbstractGeneralizing the result of Arhangel'skii that each open map with Čech-complete domain is com...
AbstractWe give some conditions under which triquotient maps are inductively perfect
AbstractGeneralizing the result of Arhangel'skii that each open map with Čech-complete domain is com...
AbstractThe purpose of this note is to study s-covering maps f:X→Y with compact or more generally wi...
AbstractThe purpose of this note is to study s-covering maps f:X→Y with compact or more generally wi...
summary:For a topological space $X$ let $\Cal K (X)$ be the set of all compact subsets of $X$. The p...
AbstractLet X and Y be separable and metrizable spaces. Suppose that the continuous and onto mapping...
AbstractWe show that every countable-compact-covering map with compact fibers from a separable metri...
AbstractWe give a new proof that, if f : X → Y is a tri-quotient map and X is partition-complete, th...
We establish a covering criterion involving a neighbourhood system and ideals of open sets which yie...
summary:Topologically maximal pretopologies, paratopologies and pseudotopologies are characterized i...
The following result has long been known to Russians and is considered elementary, but the proof doe...
The following result has long been known to Russians and is considered elementary, but the proof doe...
summary:For a topological space $X$ let $\Cal K (X)$ be the set of all compact subsets of $X$. The p...
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