devissage

Noun

1. A technique introduced by Alexander Grothendieck for comparing invariants about coherent sheaves on noetherian systems.
   • In the particular case where E is homotopy K-theory, this Gysin triangle yields a new proof of Quillen's localization theorem, which avoids the use of devissage. - 2015, Goncalo Tabuada, Michel Van den Bergh, “The Gysin...