Non-additive functors and Euler characteristics
  We show under suitable finiteness conditions that a functor between abelian categories induces a (not necessarily additive) map between their Grothendieck groups. This is related to the derived functors of Dold and Puppe, and generalizes a theorem of Dold. 
Niels uit de Bos, Lenny Taelman
math.KT math.AC math.RT