Galois theory, Hopf algebras, and semiabelian categories /
Janelidze, G.(George),1952-
Pareigis, Bodo.
Tholen, W.(Walter),1947-
Providence, R.I. : American Mathematical Society,
2004.
Includes bibliographical references.
Differential algebra.
Galois theory.
Hopf algebras.
Rings (Algebra)