Remote Access Proceedings of the American Mathematical Society
Green Open Access

Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)

 

 

The first derived equaliser of a pair of abelian group homomorphisms


Author: Tim Porter
Journal: Proc. Amer. Math. Soc. 42 (1974), 77-80
MSC: Primary 20K40
DOI: https://doi.org/10.1090/S0002-9939-1974-0335662-5
MathSciNet review: 0335662
Full-text PDF Free Access

Abstract | References | Similar Articles | Additional Information

Abstract: In this note we attack the problem of classifying a pair of abelian group homomorphisms by introducing a construction which we call ``the derived equaliser". After developing fairly simple methods for the calculation of these objects, we work an example in a simple case.


References [Enhancements On Off] (What's this?)

  • [1] Peter Freyd, Abelian categories. An introduction to the theory of functors, Harper’s Series in Modern Mathematics, Harper & Row, Publishers, New York, 1964. MR 0166240
  • [2] S. Mac Lane, Homology, Die Grundlehren der Math. Wissenschaften, Band 114, Academic Press, New York; Springer-Verlag, Berlin, 1963. MR 28 #122.
  • [3] T. Porter, Generalised recurrence formulae and $ \lim _ \leftarrow ^{(1)}$ (in preparation).

Similar Articles

Retrieve articles in Proceedings of the American Mathematical Society with MSC: 20K40

Retrieve articles in all journals with MSC: 20K40


Additional Information

DOI: https://doi.org/10.1090/S0002-9939-1974-0335662-5
Article copyright: © Copyright 1974 American Mathematical Society