A ring R is called a G-ring (or Grothendieck ring) if it is Noetherian and its formal fibers are geometrically regular; this means that for any p∈Spec(R), the map from the local ring Rp to its completion is regular in the sense above. One of Saturn's rings is named G ring. A ring, normally of stainless steel, bent to the shape of a "G". The ring is passed through a hole at the end of a pin or bolt to secure it from falling out. Used on sailing boats and yachts.

Joseph Lipman has written:

'Studies in Duality on Noetherian Formal Schemes and Non-Noetherian Ordinary Schemes (Contemporary Mathematics)'

'Residues and traces of differential forms via Hochschild homology' -- subject(s): Homology theory, Congruences and residues

'Topological invariants of quasi-ordinary singularities' -- subject(s): Knot theory, Singularities (Mathematics), Analytic spaces

'Variance And Duality For Cousin Complexes On Formal Schemes (Contemporary Mathematics)'

Valentina Barucci has written:

'Maximality properties in numerical semigroups and applications to one-dimensional analytically irreducible local domains' -- subject(s): Semigroups, Ideals (Algebra), Noetherian rings

Stephen McAdam has written:

'Asymptotic prime divisors' -- subject(s): Asymptotic theory, Commutative rings, Ideals (Algebra), Integro-differential equations, Noetherian rings, Prime Numbers, Sequences (Mathematics)

Tor H. Gulliksen has written:

'On the length of faithful modules over Artinian local rings' -- subject(s): Modules (Algebra), Rings (Algebra)

'A theory of length for Noetherian modules' -- subject(s): Modules (Algebra), Rings (Algebra)