Abstract
In order to study the problems of extending an action along a quotient of the acted object and along a quotient of the acting object, we investigate some properties of the fibration of points. In fact, we obtain a characterization of protomodular categories among quasi-pointed regular ones, and, in the semi-abelian case, a characterization of strong protomodular categories. Eventually, we return to the initial questions by stating the results in terms of internal actions
Lingua originale | English |
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pagine (da-a) | 75-88 |
Numero di pagine | 14 |
Rivista | Journal of Pure and Applied Algebra |
Volume | 221 |
Stato di pubblicazione | Published - 2017 |
All Science Journal Classification (ASJC) codes
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