"En matematiko, la 57-\u0109elo estas plur\u0109elo, kvar-dimensia . \u011Ciaj 57 \u0109eloj estas duon-dekduedroj. \u011Ci havas 57 verticojn, 171 laterojn kaj 171 edrojn. \u011Cia geometria simetria grupo estas la L2(19) de ordo3420. \u011Cia simbolo de Schl\u00E4fli estas {5,3,5}. \u011Ci havas 5 duon-dekduedraj \u0109eloj \u0109irka\u016D \u0109iu latero. \u011Ci estis esplorita de H. S. M. Coxeter en 1982."@eo . . . . . . . "1982"^^ . "Perkel graph"@en . "57-\u0109elo"@eo . . "\u56DB\u7DAD\u6B63\u4E94\u5341\u4E03\u80DE\u9AD4"@zh . . . . "57-cell"@en . . . . "Coxeter"@en . . "\u5728\u56DB\u7DAD\u7A7A\u9593\u5E7E\u4F55\u5B78\u4E2D\uFF0C\u6B63\u4E94\u5341\u4E03\u80DE\u9AD4\u662F\u56DB\u7DAD\u7A7A\u9593\u7684\u4E00\u7A2E\u81EA\u8EAB\u5C0D\u5076\u7684\uFF0C\u753157\u500B\u5341\u4E8C\u9762\u9AD4\u534A\u5F62\u7D44\u6210\u3002"@zh . . . "1059315840"^^ . "In mathematics, the 57-cell (pentacontakaiheptachoron) is a self-dual abstract regular 4-polytope (four-dimensional polytope). Its 57 cells are hemi-dodecahedra. It also has 57 vertices, 171 edges and 171 two-dimensional faces. The symmetry order is 3420, from the product of the number of cells (57) and the symmetry of each cell (60). The symmetry abstract structure is the projective special linear group, L2(19). It has Schl\u00E4fli symbol {5,3,5} with 5 hemi-dodecahedral cells around each edge. It was discovered by H. S. M. Coxeter."@en . . "In mathematics, the 57-cell (pentacontakaiheptachoron) is a self-dual abstract regular 4-polytope (four-dimensional polytope). Its 57 cells are hemi-dodecahedra. It also has 57 vertices, 171 edges and 171 two-dimensional faces. The symmetry order is 3420, from the product of the number of cells (57) and the symmetry of each cell (60). The symmetry abstract structure is the projective special linear group, L2(19). It has Schl\u00E4fli symbol {5,3,5} with 5 hemi-dodecahedral cells around each edge. It was discovered by H. S. M. Coxeter."@en . . . . "948622"^^ . . . . . . . "H. S. M."@en . "PerkelGraph"@en . . . . "En matematiko, la 57-\u0109elo estas plur\u0109elo, kvar-dimensia . \u011Ciaj 57 \u0109eloj estas duon-dekduedroj. \u011Ci havas 57 verticojn, 171 laterojn kaj 171 edrojn. \u011Cia geometria simetria grupo estas la L2(19) de ordo3420. \u011Cia simbolo de Schl\u00E4fli estas {5,3,5}. \u011Ci havas 5 duon-dekduedraj \u0109eloj \u0109irka\u016D \u0109iu latero. \u011Ci estis esplorita de H. S. M. Coxeter en 1982."@eo . . . . . . "4367"^^ . . . . . . . . "Harold Scott MacDonald Coxeter"@en . "\u5728\u56DB\u7DAD\u7A7A\u9593\u5E7E\u4F55\u5B78\u4E2D\uFF0C\u6B63\u4E94\u5341\u4E03\u80DE\u9AD4\u662F\u56DB\u7DAD\u7A7A\u9593\u7684\u4E00\u7A2E\u81EA\u8EAB\u5C0D\u5076\u7684\uFF0C\u753157\u500B\u5341\u4E8C\u9762\u9AD4\u534A\u5F62\u7D44\u6210\u3002"@zh . . . . . .