A note on the non-emptiness of the limit of approximate systems

Michael G. Charalambous

Displaying similar documents to “A note on the non-emptiness of the limit of approximate systems”

Approximate inverse systems of uniform spaces and an application of inverse systems

Michael G. Charalambous (1991)

Commentationes Mathematicae Universitatis Carolinae

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The fundamental properties of approximate inverse systems of uniform spaces are established. The limit space of an approximate inverse sequence of complete metric spaces is the limit of an inverse sequence of some of these spaces. This has an application to the dimension of the limit space of an approximate inverse system. A topologically complete space with $dim \leq n$ is the limit of an approximate inverse system of metric polyhedra of $dim \leq n$ . A completely metrizable separable space with $dim \leq n$ is the...

An example in the theory of approximate systems

Nikica Uglešić (1993)

Commentationes Mathematicae Universitatis Carolinae

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An approximate inverse sequence of plane continua is constructed which negatively answers a question of S. Mardeši’c related to approximate and usual inverse systems. The example also shows that an important result of M.G. Charalambous cannot be improved. As an application, it is shown that a procedure of making an approximate inverse sequence commutative (“taming”) is discontinuous.

Hyperspace of the approximate inverse limit

I. Lončar (1990)

Matematički Vesnik

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Between closed sets and generalized closed sets in closure spaces

Chawalit Boonpok, Jeeranunt Khampakdee (2008)

Acta Mathematica Universitatis Ostraviensis

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The purpose of the present paper is to define and study $\partial$ -closed sets in closure spaces obtained as generalization of the usual closed sets. We introduce the concepts of $\partial$ -continuous and $\partial$ -closed maps by using $\partial$ -closed sets and investigate some of their properties.