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Description: |
A Gumm category is a finitely complete category where the categorical version of the Shifting Lemma holds. In varieties of universal algebras, the validity of this lemma is equivalent to being congruence modular. Mal'tsev and Goursat categories give examples of Gumm categories. We show that reflexive multiplicative graphs in Gumm categories are necessarily internal categories and explore some applications of this property.
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Date: |
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| Start Time: |
15:30 |
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Speaker: |
Diana Rodelo (CMUC and Univ. Algarve)
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Institution: |
CMUC, Universidade do Algarve
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Place: |
Sala 5.5
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| Research Groups: |
-Algebra, Logic and Topology
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See more:
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