In the context of semi-abelian categories, we develop some new aspects of the categorical theory of central extensions by Janelidze and Kelly. If C is a semi-abelian category and X is any admissible subcategory we give several characterizations of trivial and central extensions. The notion of centra
โฆ LIBER โฆ
Yoneda extensions in abelian categories
โ Scribed by F. Oort
- Publisher
- Springer
- Year
- 1964
- Tongue
- English
- Weight
- 485 KB
- Volume
- 153
- Category
- Article
- ISSN
- 0025-5831
No coin nor oath required. For personal study only.
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It is a pleasure to thank the referec for his valuable suggestions which resulted in an improvement of the manuscript. The first author also thanks Professor E. L. Green for valuable discussions concerning the package GRB, on May 1994 at SFB 343, University Bielefeld; and Professor C. M. Ringel for
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