On the structure of commutative pointed Hopf algebras

Reflexivity and coalgebras of finite type

Robert G Heyneman, David E. Radford · Journal of Algebra · 1974 · 127 citations

Natural Sciences, Architectural Representation, Algebra +4

A correspondence between Hopf ideals and sub-Hopf algebras

Mitsuhiro Takeuchi · manuscripta mathematica · 1972 · 122 citations

Natural Sciences, Mathematics, Algebra +6

Pointed Hopf algebras are free over Hopf subalgebras

David E. Radford · Journal of Algebra · 1977 · 66 citations

Natural Sciences, Mathematics, Algebra +5

The uniqueness of integrals for Hopf algebras and some existence theorems of integrals for commutative Hopf algebras

John Brendan Sullivan · Journal of Algebra · 1971 · 52 citations

Natural Sciences, Mathematics, Algebra +10

Connected fully reducible affine group schemes in positive characteristic are Abelian

Moss E. Sweedler · Kyoto journal of mathematics · 1971 · 20 citations · Full text

Natural Sciences, Property Law, Representation Theory +6