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arXiv · 1305.1115

Approximate Hagemann-Mitschke co-operations

Diana Rodelo·Tim Van der Linden
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Abstract

We show that varietal techniques based on the existence of operations of a certain arity can be extended to n-permutable categories with binary coproducts. This is achieved via what we call approximate Hagemann-Mitschke co-operations, a generalisation of the notion of approximate Mal'tsev co-operation. In particular, we extend characterisation theorems for n-permutable varieties due to J. Hagemann and A. Mitschke to regular categories with binary coproducts.

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Diana Rodelo, Tim Van der Linden. 2013-05-06. Approximate Hagemann-Mitschke co-operations. https://doi.org/10.1007/s10485-013-9359-y

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