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Field of definition

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  • Field of definition — In mathematics, the field of definition of an algebraic variety V is essentially the smallest field to which the coefficients of the polynomials defining V can belong. Given polynomials, with coefficients in a field K , it may not be obvious… …   Wikipedia

  • Field trial — A field trial is a competitive event at which hunting dogs compete against one another. Field trials are usually organized by kennel clubs or other gun dog organizations. Field trials are generally considered more competitive than hunt tests in… …   Wikipedia

  • Field — or fields may refer to: * Field (agriculture), an area of land used to cultivate crops for agricultural purposes * Field of study, a branch of knowledge * Playing field, in sports, the area in which the sport is played * Visual field or field of… …   Wikipedia

  • Field capacity — is the amount of soil moisture or water content held in soil after excess water has drained away and the rate of downward movement has materially decreased, which usually takes place within 2–3 days after a rain or irrigation in pervious soils of …   Wikipedia

  • Field (mathematics) — This article is about fields in algebra. For fields in geometry, see Vector field. For other uses, see Field (disambiguation). In abstract algebra, a field is a commutative ring whose nonzero elements form a group under multiplication. As such it …   Wikipedia

  • Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… …   Wikipedia

  • Definition of planet — Photograph of the crescent planet Neptune (top) and its moon Triton (center) …   Wikipedia

  • Field Day Theatre Company — The Field Day Theatre Company began as an artistic collaboration between playwright Brian Friel and actor Stephen Rea. In 1980, the duo set out to launch a production of Friel s recently completed play, Translations . They decided to rehearse and …   Wikipedia

  • field hockey — a game played on a rectangular field having a netted goal at each end, in which two teams of 11 players each compete in driving a small leather covered ball into the other s goal, each player being equipped with a stick having a curved end or… …   Universalium

  • Field emission display — A field emission display (FED) is a display technology that incorporates flat panel display technology that uses large area field electron emission sources to provide electrons that strike colored phosphor to produce a color image as a electronic …   Wikipedia

  • Field (video) — In video, a field is one of the many still images which are displayed sequentially to create the impression of motion on the screen. Two fields comprise one video frame. When the fields are displayed on a video monitor they are interlaced so that …   Wikipedia

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