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GIUSEPPE METERE

Bipullbacks of fractions and the snail lemma

  • Authors: Jacqmin, P.; Mantovani, S.; Metere, G.; Vitale, E.
  • Publication year: 2019
  • Type: Articolo in rivista

Abstract

We establish conditions giving the existence of bipullbacks in bicategories of fractions. We apply our results to construct a π0-π1 exact sequence associated with a fractor between groupoids internal to a pointed exact category

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