ABSTRACT
Symmetric algebras of modules are basically families of polynomial rings. More precisely, let R be a ring and let E be a module with a presentation R m → φ R n → E → 0. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003071815/784c622f-41de-4d6a-a0dd-1da6961f4d1b/content/eq1456.tif"/>
