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Faithfully flat ring maps are not descendable
- Publication Year :
- 2024
-
Abstract
- We describe a general procedure of constructing non-trivial cup-products from non-trivial compositions in the derived category of a commutative ring. Using this, we show that there exist faithfully flat commutative boolean ring maps that are not descendable.<br />Comment: Preprint, all comments are welcome
- Subjects :
- Mathematics - Commutative Algebra
Mathematics - Category Theory
18G15
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2405.08124
- Document Type :
- Working Paper