57-cell - meaning and definition. What is 57-cell
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What (who) is 57-cell - definition


57-cell         
  • [[Perkel graph]]s with 19-fold symmetry
In mathematics, the 57-cell (pentacontakaiheptachoron) is a self-dual abstract regular 4-polytope (four-dimensional polytope). Its 57 cells are hemi-dodecahedra.
Bundesautobahn 57         
FEDERAL MOTORWAY IN GERMANY
Autobahn 57; BAB 57; A 57 motorway (Germany); A57 motorway (Germany)
is a German Autobahn that begins at the Dutch-German border near Goch and ends in Köln. It runs parallel to the Rhine River.
Cell (music)         
SMALLEST INDIVISIBLE UNIT OF MUSIC OF RHYTHMIC AND MELODIC DESIGN
Musical cell; Intervallic cell; Rhythmic cell; Melodic cell
The 1957 Encyclopédie Laroussequoted in Nattiez, Jean-Jacques (1990). Music and Discourse: Toward a Semiology of Music (Musicologie générale et sémiologue, 1987).