four-strand braid group

См. также в других словарях:

• Braid group — In mathematics, the braid group on n strands, denoted by B n , is a certain group which has an intuitive geometrical representation, and in a sense generalizes the symmetric group S n . Here, n is a natural number; if n gt; 1, then B n is an… …   Wikipedia

• Serbian Christmas traditions — An icon representing the Nativity of Jesus Christ. The Serbian Orthodox Church uses the traditional Julian Calendar. From 1900 until 2100, the Julian calendar is 13 days behind the Gregorian and therefore Serbian Christmas Day falls on 7 January… …   Wikipedia

• textile — /teks tuyl, til/, n. 1. any cloth or goods produced by weaving, knitting, or felting. 2. a material, as a fiber or yarn, used in or suitable for weaving: Glass can be used as a textile. adj. 3. woven or capable of being woven: textile fabrics. 4 …   Universalium

• literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …   Universalium

• Hinduism — /hin dooh iz euhm/, n. the common religion of India, based upon the religion of the original Aryan settlers as expounded and evolved in the Vedas, the Upanishads, the Bhagavad Gita, etc., having an extremely diversified character with many… …   Universalium

• Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …   Wikipedia

• Stevie Nicks — Infobox musical artist | Name = Stevie Nicks Img capt = Photo credit: SandyMac Img size = 600 Landscape = Background = solo singer Birth name = Stephanie Lynn Nicks Alias = Stevie Born = Birth date and age|1948|5|26|mf=y Died = Origin = Phoenix,… …   Wikipedia

• Art and Art Exhibitions — ▪ 2009 Introduction Art       The art market enjoyed an astonishing run of record breaking sales through the first nine months of a volatile 2008. In May Lucian Freud s Benefits Supervisor Sleeping (1995), a candid portrayal of a corpulent female …   Universalium

• Comanche — For other uses, see Comanche (disambiguation). Comanche Comanche portraits Total population 14,700[1] …   Wikipedia

• List of Doctor Who monsters and aliens — This is a list of monsters and aliens from the long running BBC science fiction television series Doctor Who . The list includes some races which are not extraterrestrial, but are nonetheless non human. This list is meant to cover alien races and …   Wikipedia

• number game — Introduction       any of various puzzles and games that involve aspects of mathematics.       Mathematical recreations comprise puzzles and games that vary from naive amusements to sophisticated problems, some of which have never been solved.… …   Universalium