Trends in Mathematics/ Birkchäuser, Modules and Comodules (2008), 293-225

We study preradicals on a universal class D of algebras and we present a process to construct preradicals over algebras from certain families of preradicals over modules. We also define a torsion Plotkin radical on the class of all associative algebras which satisfies dual proprieties of the Jacobson radical

CEMAT - Center for Computational and Stochastic Mathematics