. _:vb7736961 "Our 16-point 4D constellation is described by the set {(\u00B11,\u00B11,\u00B11,\u00B11)}, which is indeed the set of vertices of a tesseract (i.e., a regular octachoron) [4]."@en . . _:vb7736961 "2012, Yequn Zhang, Murat Arabaci, Ivan B. Djordjevic, Rate-Adaptive Four-Dimensional Nonbinary LDPC-Coded Modulation for Long-Haul Optical Transport Networks\u200E[1], page 3:"@en . . _:vb7736962 "2013, Milorad Cvijetic, Ivan B. Djordjevic, Advanced Optical Communication Systems and Networks, page 357:"@en . _:vb7736960 "(mathematics) A four-dimensional object analogous to a cube, constructed out of eight cubes."@en . _:vb7736962 "The Schlegel diagram from this figure is a projection of a regular octachoron from the 4-D space to the 3-D space through a point beyond one of its facets."@en . _:vb7736961 . _:vb7736962 . _:vb7736963 . . _:vb7736960 . _:vb7736963 "...completing the notation for the vertices of an elementary lattice octachoron."@en . "1" . _:vb7736963 "2013, Paul Jennings, Frank Nijhoff, On an elliptic extension of the Kadomtsev-Petviashvili equation\u200E[1], page 4:"@en . .