- monoid rings and the n-generator property
- factorization and irreducibility criteria, class group, integer-valued polynomials, Skolem properties, and normsets
- Koszul algebras, primary decomposition, Noetherian domains, and the Krull—Schmidt property
- domains, Prüfer domains, GCD-domains, pullbacks, A + XB[X] domains, pseudo-valuation rings, Hermite rings, and semi-Steinitz rings
- Krull and projective dimensions, n-coherence, Kaplansky ideal transform, trace properties, polynomial rings, formal power series rings, seminormality, and root closure
- plane cubic curves, spectral topology, and completions