Variety
Encyclopedia

## Mathematics

• Abelian variety
Abelian variety
In mathematics, particularly in algebraic geometry, complex analysis and number theory, an abelian variety is a projective algebraic variety that is also an algebraic group, i.e., has a group law that can be defined by regular functions...

, a complex torus that can be embedded into projective space
• Abstract variety
Abstract variety
In mathematics, in the field of algebraic geometry, the idea of abstract variety is to define a concept of algebraic variety in an intrinsic way. This followed the trend in the definition of manifold independent of any ambient space by some years, the first notions being those of Oscar Zariski and...

, an intrinsically defined variety
• Algebraic variety
Algebraic variety
In mathematics, an algebraic variety is the set of solutions of a system of polynomial equations. Algebraic varieties are one of the central objects of study in algebraic geometry...

, the basic object of study in algebraic geometry
• Affine variety
Algebraic variety
In mathematics, an algebraic variety is the set of solutions of a system of polynomial equations. Algebraic varieties are one of the central objects of study in algebraic geometry...

, a subset of algebraic varieties
• Projective variety
Algebraic variety
In mathematics, an algebraic variety is the set of solutions of a system of polynomial equations. Algebraic varieties are one of the central objects of study in algebraic geometry...

, a subset of algebraic varieties
• Quasiprojective variety
Quasiprojective variety
In mathematics, a quasiprojective variety in algebraic geometry is a locally closed subset of a projective variety, i.e., the intersection inside some projective space of a Zariski-open and a Zariski-closed subset...

, a subset of algebraic varieties (which includes projective and affine varieties)
• Analytic variety
Analytic variety
In mathematics, specifically geometry, an analytic variety is defined locally as the set of common zeros of finitely many analytic functions. It is analogous to the included concept of complex algebraic variety, and every complex manifold is an analytic variety. Since analytic varieties may have...

, an object much like an algebraic variety but defined as the zero set of finitely many (real- or complex-)analytic functions
• Variety (universal algebra)
Variety (universal algebra)
In mathematics, specifically universal algebra, a variety of algebras is the class of all algebraic structures of a given signature satisfying a given set of identities. Equivalently, a variety is a class of algebraic structures of the same signature which is closed under the taking of homomorphic...

, classes of algebraic structures defined by equations in universal algebra

## Sciences

• Variety (botany), a formal rank in botanical taxonomic nomenclature
• Variety (cybernetics)
Variety (cybernetics)
In cybernetics the term variety denotes the total number of distinct states of a system.- Overview :The term Variety was introduced by W. Ross Ashby to denote the count of the total number of states of a system. The condition for dynamic stability under perturbation was described by his Law of...

, the number of possible states of a system or of an element of the system
• Variety (linguistics)
Variety (linguistics)
In sociolinguistics a variety, also called a lect, is a specific form of a language or language cluster. This may include languages, dialects, accents, registers, styles or other sociolinguistic variation, as well as the standard variety itself...

, a concept that includes, for instance, dialects, standard language and jargon
• Plant variety (law), a legal rather than taxonomic term for a cultivar or hybrid protected by patent law
• "Variety", an informal (and incorrect and ambiguous) rather than taxonomic term for cultivar
Cultivar
A cultivar'Cultivar has two meanings as explained under Formal definition. When used in reference to a taxon, the word does not apply to an individual plant but to all those plants sharing the unique characteristics that define the cultivar. is a plant or group of plants selected for desirable...

in horticulture

### Broadcast media

• Variety (US radio), a format of radio programming
• Variety show
Variety show
A variety show, also known as variety arts or variety entertainment, is an entertainment made up of a variety of acts, especially musical performances and sketch comedy, and normally introduced by a compère or host. Other types of acts include magic, animal and circus acts, acrobatics, juggling...

, a form of theatrical and television entertainment

### Film

• Varieté
Varieté
Variety is a 1925 silent drama film directed by Ewald Andre Dupont based on the novel Der Eid des Stephan Huller by . Jannings portrays "Boss Huller," an ex-trapeze artist who runs a seedy carnival with his wife and child...

, a 1925 silent film
• Variety Girl
Variety Girl
Variety Girl is an all-star movie musical produced by Paramount Pictures. Numerous Paramount contract players and directors make cameos or perform songs, with particularly large amounts of screen time featuring Bing Crosby...

, a 1947 all-star movie musical produced by Paramount Pictures
• Variety Film Reviews
Variety Film Reviews
Variety Film Reviews is the 24-volume hardcover reprint of feature film reviews by the weekly entertainment tabloid-size magazine Variety from 1907 to 1996...

, the 24-volume hardcover reprint of feature film reviews by the weekly entertainment tabloid-size magazine Variety from 1907 to 1996
• Variety (1983 film), a 1983 film

### Hobbies

• Variety, a term in coin collecting—see Glossary of numismatics#Variety
• Variety (philately), a term in stamp collecting
Stamp collecting
Stamp collecting is the collecting of postage stamps and related objects. It is one of the world's most popular hobbies, with the number of collectors in the United States alone estimated to be over 20 million.- Collecting :...

### Music

• Variety (Les Rita Mitsouko album)
Variety (Les Rita Mitsouko album)
Variéty is the seventh studio album by Les Rita Mitsouko. An English language version of the album was produced for the international English speaking market...

, the seventh studio album by Les Rita Mitsouko
• Variety (Tokyo Incidents album), Japanese band Tokyo Jihen's third studio album
• Variety Playhouse
Variety Playhouse
Variety Playhouse is a music venue in the Little Five Points neighborhood of Atlanta, Georgia, United States. It is located on Euclid Avenue and features a variety of music acts including rock, country, folk, bluegrass, jazz, blues and world music as well as other live shows.-Details:The building...

, music venue in the Little Five Points neighborhood of Atlanta, Georgia, United States

### Print media

• Variety (magazine)
Variety (magazine)
Variety is an American weekly entertainment-trade magazine founded in New York City, New York, in 1905 by Sime Silverman. With the rise of the importance of the motion-picture industry, Daily Variety, a daily edition based in Los Angeles, California, was founded by Silverman in 1933. In 1998, the...

, an entertainment industry newspaper
• Variety Obituaries
Variety Obituaries
Variety Obituaries is a 15-volume series with facsimile reprints of the full text of every obituary published by the entertainment trade magazine Variety from 1905 to 1994.Information for each deceased person can include the following:...

, 15-volume series with every obituary published by the entertainment trade magazine Variety from 1905 to 1994
• "Second Variety
Second Variety
"Second Variety" is an influential short story by Philip K. Dick first published in Space Science Fiction magazine, in May 1953. It is one of Dick's many stories in which nuclear war has rendered the Earth's surface an uninhabitable, gray ash pile, and the only things remaining are killer robots...

", a 1953 influential short story by Philip K. Dick

## Other uses

• Variety, the Children's Charity
Variety, the Children's Charity
Variety, the Children's Charity is an organisation founded in Pittsburgh, Pennsylvania on October 10, 1927, when a group of eleven men involved in show business set up a social club which they named the "Variety Club". On Christmas Eve 1928, a small baby was left on the steps the Sheridan Square...

, international charity to help children with special needs
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