EN
CONTENTS
Introduction................................................................................................................................................................................5
§ 1. Notation and preliminaries.............................................................................................................................................6
§ 2. Epimorphisms and monomorphisms.........................................................................................................................7
§ 3. Completeness and cocompleteness of the categories ℋ, $\bar{ℋ}$, $ℋ_S$ and ℋ 0$\bar{ℋ}_S$.........9
§ 4. Limits and colimits in $\bar{ℋ}$ in terms of limits and colimits in Arch and Compconv..................................14
§ 5. Limits and colimits in Compconv in terms of limits and colimits in $\bar{ℋ}$....................................................23
§ 6. Retracts and free objects................................................................................................................................................32
References................................................................................................................................................................................35