closed surface

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• Closed surface — In mathematics a closed surface (2 manifold) is a closed manifold of dimension two, with a single connected component. Examples are spaces like the sphere, the torus, and the Klein bottle. They are classified by the genus and their orientability …   Wikipedia

• closed surface — uždarasis paviršius statusas T sritis fizika atitikmenys: angl. closed surface vok. geschlossene Fläche, f rus. замкнутая поверхность, f pranc. surface fermée, f …   Fizikos terminų žodynas

• Surface — This article discusses surfaces from the point of view of topology. For other uses, see Differential geometry of surfaces, algebraic surface, and Surface (disambiguation). An open surface with X , Y , and Z contours shown. In mathematics,… …   Wikipedia

• Closed wing — A closed wing is a non planar wing planform concept. The term closed wing encompasses a number of designs, including the annular wing (commonly known as the cylindrical or ring wing), the joined wing, and the box wing. A closed wing can be… …   Wikipedia

• Surface subgroup conjecture — In mathematics, the surface subgroup conjecture of Friedhelm Waldhausen states that the fundamental group of every closed, irreducible 3 manifold with infinite fundamental group has a surface subgroup. By surface subgroup we mean the fundamental… …   Wikipedia

• closed — adjective Date: 13th century 1. a. not open b. enclosed c. composed entirely of closed tubes or vessels < a closed circulatory system > 2. a. forming a self contained unit allowing no additions …   New Collegiate Dictionary

• surface fermée — uždarasis paviršius statusas T sritis fizika atitikmenys: angl. closed surface vok. geschlossene Fläche, f rus. замкнутая поверхность, f pranc. surface fermée, f …   Fizikos terminų žodynas

• Closed head injury — Closed head injuries are a type of Traumatic Brain Injury in which the skull and dura mater remain intact. Closed head injuries are the leading cause of death in children under 4 years old and the most common cause of physical disability and… …   Wikipedia

• closed — adj. 1. having an opening obstructed. [Narrower terms: {blind}] Also See: {obstructed}, {sealed}, {shut}, {unopen}, {closed}. Antonym: {open}. [WordNet 1.5] 2. (Math.) of a curve or surface: having no end points or boundary curves; of a set:… …   The Collaborative International Dictionary of English

• Closed kinetic chain exercises — or closed chain exercises (CKC) are physical exercises performed where the hand (for arm movement) or foot (for leg movement) is fixed and cannot move. The hand/foot remains in constant contact with the surface, usually the ground or the base of… …   Wikipedia

• Closed-eye hallucination — Closed eye hallucinations and closed eye visualizations (CEV) are a distinct class of hallucination. These types of hallucinations generally only occur when one s eyes are closed or when one is in a darkened room. They are a form of phosphene.… …   Wikipedia