The Rings of Power are magical artefacts in J. R. R. Tolkien's legendarium, most prominently in his high fantasy novel The Lord of the Rings. The One Ring...

of a ring Simplicial commutative ring Special types of rings: Boolean ring Dedekind ring Differential ring Exponential ring Finite ring Lie ring Local...

The Lord of the Rings is an epic high fantasy novel by the English author and scholar J. R. R. Tolkien. Set in Middle-earth, the story began as a sequel...

A cock ring is a ring worn around the penis, usually at the base. The primary purpose of wearing a cock ring is to restrict the flow of blood from the...

The rings of Saturn are the most extensive and complex ring system of any planet in the Solar System. They consist of countless small particles, ranging...

Ring (リング, Ringu) is a 1998 Japanese supernatural psychological horror film directed by Hideo Nakata and written by Hiroshi Takahashi, based on the 1991...

second season of the American fantasy television series The Lord of the Rings: The Rings of Power is based on J. R. R. Tolkien's history of Middle-earth, primarily...

mathematics, especially in the field of algebra, a polynomial ring or polynomial algebra is a ring (which is also a commutative algebra) formed from the set...

(Daniel Weyman) is a Wizard. The Rings of Power are represented in composer Bear McCreary's score by "Where the Shadows Lie", a song that is sung by Fiona...

μ ring. Additional faint dust bands and incomplete arcs may exist between the main rings. The rings are extremely dark—the Bond albedo of the rings' particles...

The Bling Ring (also known as Hollywood Hills Burglar Bunch, The Burglar Bunch, and the Hollywood Hills Burglars) was a group of seven teenagers and young...

mathematics, a ring homomorphism is a structure-preserving function between two rings. More explicitly, if R and S are rings, then a ring homomorphism is...

A ring system is a disc or torus orbiting an astronomical object that is composed of solid material such as gas, dust, meteoroids, planetoids or moonlets...

An engagement ring, also known as a betrothal ring, is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures...

The Ring of Gyges /ˈdʒaɪˌdʒiːz/ (Ancient Greek: Γύγου Δακτύλιος, Gúgou Daktúlios, Attic Greek pronunciation: [ˈɡyːˌɡoː dakˈtylios]) is a hypothetical magic...

The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a tectonic belt of volcanoes...

mathematics, a commutative ring is a ring in which the multiplication operation is commutative. The study of commutative rings is called commutative algebra...

definition of a graded ring; hence, the notion applies to non-associative algebras as well; e.g., one can consider a graded Lie algebra. Generally, the...

In mathematics, a Noetherian ring is a ring that satisfies the ascending chain condition on left and right ideals; if the chain condition is satisfied...

In mathematics, and more specifically in ring theory, an ideal of a ring is a special subset of its elements. Ideals generalize certain subsets of the...

In ring theory, a branch of abstract algebra, a quotient ring, also known as factor ring, difference ring or residue class ring, is a construction quite...

integers. Ring theory studies the structure of rings; their representations, or, in different language, modules; special classes of rings (group rings, division...

The Company of the Ring, also called the Fellowship of the Ring and the Nine Walkers, is a group of nine representatives from the free peoples of Middle-earth:...

The rings of Neptune consist primarily of five principal rings. They were first discovered (as "arcs") by simultaneous observations of a stellar occultation...

vision from her Ring of Power that danger lies on their new path and believes this to be a trap set by Sauron. Elrond dismisses the ring's warning. Separated...

second season of the American fantasy television series The Lord of the Rings: The Rings of Power. Based on J. R. R. Tolkien's history of Middle-earth, primarily...

In mathematics, the ring of integers of an algebraic number field K {\displaystyle K} is the ring of all algebraic integers contained in K {\displaystyle...

Radical of a ring for more on this. The nilradical of a Lie algebra is similarly defined for Lie algebras. The nilradical of a commutative ring is the set...

Equivalently, a noncommutative ring is a ring that is not a commutative ring. Noncommutative algebra is the part of ring theory devoted to study of properties...

Mandarin's rings are a set of fictional weapons appearing in American comic books published by Marvel Comics. There are two versions of the rings in the Marvel...