16 citations · 73 across the 20 of their papers we have counts for
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Some remarks on pullbacks in Gumm categories
Marino Gran, Diana Rodelo
We extend some properties of pullbacks which are known to hold in a Mal'tsev context to the more general context of Gumm categories. The varieties of universal algebras which are G…
On the characterization of Jónsson-Tarski and of subtractive varieties
Marino Gran, Diana Rodelo
We investigate unital, subtractive and strongly unital regular categories with enough projectives and give characterizations of their projective covers. The categorical equation "s…
The Cuboid Lemma and Mal'tsev categories
Marino Gran, Diana Rodelo
We prove that a regular category is a Mal'tsev category if and only if a strong form of the denormalised Lemma holds true in . In this version…
On -star-permutability in regular multi-pointed categories
Marino Gran, Diana Rodelo
-star-permutable categories were introduced in a joint work with Z. Janelidze and A. Ursini as a common generalisation of regular Mal'tsev categories and of normal subtractive c…