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Universal Central Extensions in Semi-Abelian Categories

✍ Scribed by Casas, José Manuel; Linden, Tim


Book ID
121555631
Publisher
Springer
Year
2013
Tongue
English
Weight
544 KB
Volume
22
Category
Article
ISSN
0927-2852

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Central extensions in semi-abelian categ
✍ Dominique Bourn; Marino Gran 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 119 KB

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