Corpus ID: 119654381

Contraherent cosheaves

@inproceedings{Positselski2012ContraherentC,
  title={Contraherent cosheaves},
  author={L. Positselski},
  year={2012}
}

• L. Positselski
• Published 2012
• Mathematics

Contraherent cosheaves are globalizations of cotorsion (or similar) modules over commutative rings obtained by gluing together over a scheme. The category of contraherent cosheaves over a scheme is a Quillen exact category with exact functors of infinite product. Over a quasi-compact semi-separated scheme or a Noetherian scheme of finite Krull dimension (in a different version—over any locally Noetherian scheme), it also has enough projectives. We construct the derived co-contra correspondence… Expand

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