Annali di Matematica Pura ed Applicata

, Volume 71, Issue 1, pp 331–349 | Cite as

A generalization of certain homological functors

  • P. J. Hilton
  • I. S. Pressman


By a natural process of relativization groups Extn(A, φ), πn(A, φ) are defined in any abelian category with sufficient injectives and projectives. Functoriality in φ i spro. ved and excision properties are established; and the groups are shown to behave well under suspension. The technique involves an interplay of different mapping-cone constructions


Natural Process Relativization Group Abelian Category Homological Functor Excision Property 
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.


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Copyright information

© Nicola Zanichelli Editore 1966

Authors and Affiliations

  • P. J. Hilton
  • I. S. Pressman

There are no affiliations available

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