• Gabriele Castellini
Part of the Mathematics: Theory & Applications book series (MTA)


In this chapter we use the concept of closure operator to introduce a general notion of “compactness” in an arbitrary category. This notion was inspired by the Kuratowski-Mrówka characterization: a topological space X is compact if and only if for any topological space Y, the projection \( X \times Y\xrightarrow{{\pi _Y }}Y \) is closed.


Commutative Diagram Closure Operator Inverse Limit Terminal Object Compact Topological Space 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Gabriele Castellini
    • 1
  1. 1.Department of Mathematics MayaguezUniversity of Puerto RicoPuerto RicoUSA

Personalised recommendations