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Hyperbolic sector
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former. When in standard position, a hyperbolic sector determines a hyperbolic triangle, the right triangle with one vertex at the origin, base on the diagonalNon-Euclidean crystallographic group (154 words) [view diff] exact match in snippet view article find links to article
index 2 Fuchsian subgroup of orientation-preserving elements. The hyperbolic triangle groups are notable NEC groups. Others are listed in Orbifold notationHyperbolic angle (2,276 words) [view diff] exact match in snippet view article find links to article
trigonometric functions by regarding a hyperbolic angle as defining a hyperbolic triangle. The parameter thus becomes one of the most useful in the calculus(2,3,7) triangle group (818 words) [view diff] exact match in snippet view article
First Hurwitz triplet. To construct the triangle group, start with a hyperbolic triangle with angles π/2, π/3, and π/7. This triangle, the smallest hyperbolicOrder-3 apeirogonal tiling (327 words) [view diff] exact match in snippet view article find links to article
Regular Truncations {∞,3} t0,1{∞,∞} t1,2{∞,∞} t{∞[3]} Hyperbolic triangle groups [∞,3] [∞,∞] [(∞,∞,∞)]Modular group (3,317 words) [view diff] exact match in snippet view article find links to article
= 1/2 and Re(z) = −1/2, and the circle |z| = 1. This region is a hyperbolic triangle. It has vertices at 1/2 + i√3/2 and −1/2 + i√3/2, where the angleNormalizing constant (1,010 words) [view diff] exact match in snippet view article find links to article
and sinh from the lengths of the adjacent and opposite sides of a hyperbolic triangle. Normalization (statistics) Continuous Distributions at UniversitySystoles of surfaces (924 words) [view diff] exact match in snippet view article find links to article
defined by a tower of principal congruence subgroups of the (2,3,7) hyperbolic triangle group satisfy the bound sys(Σg)≥43logg,{\displaystyle \mathrm {sys}Right triangle (2,951 words) [view diff] exact match in snippet view article find links to article
hyperbolic functions as ratio of the sides of a right triangle, see the hyperbolic triangle of a hyperbolic sector. The values of the trigonometric functionsUniform tilings in hyperbolic plane (1,586 words) [view diff] exact match in snippet view article find links to article
points of the fundamental domain triangle – the symmetry group is a hyperbolic triangle group. Each symmetry family contains 7 uniform tilings, defined bySchwarz's list (904 words) [view diff] no match in snippet view article find links to article
Another relevant list is that of K. Takeuchi, who classified the (hyperbolic) triangle groups that are arithmetic groups (85 examples). Émile Picard soughtCoxeter group (3,588 words) [view diff] exact match in snippet view article find links to article
describing reflection groups in hyperbolic space, notably including the hyperbolic triangle groups. A Coxeter group is said to be irreducible if its Coxeter–DynkinSystolic geometry (3,932 words) [view diff] exact match in snippet view article find links to article
defined by a tower of principal congruence subgroups of the (2,3,7) hyperbolic triangle group satisfy the bound s y s π 1 ( Σ g ) ≥ 4 3 log g , {\displaystyleTriangle center (3,898 words) [view diff] exact match in snippet view article find links to article
Applications. 6 (1): 1–35., article #18 Ungar, Abraham A. (2010). Hyperbolic triangle centers : the special relativistic approach. Dordrecht: SpringerKlein quartic (3,288 words) [view diff] exact match in snippet view article find links to article
algebraic integers. The group Γ(I) is a subgroup of the (2,3,7) hyperbolic triangle group. Namely, Γ(I) is a subgroup of the group of elements of unitMass in special relativity (6,288 words) [view diff] case mismatch in snippet view article find links to article
December 12, 2017 – via HUIT Sites Hosting. Ungar, Abraham A. (2010). Hyperbolic Triangle Centers: The Special Relativistic Approach. Dordrecht: Springer.Orbifold (10,240 words) [view diff] exact match in snippet view article find links to article
2-dimensional orbifold. The corresponding group is an example of a hyperbolic triangle group. Poincaré also gave a 3-dimensional version of this resultList of uniform polyhedra by Schwarz triangle (2,757 words) [view diff] exact match in snippet view article find links to article
Möbius triangle as well; but this is impossible as (2 4 5) is a hyperbolic triangle, not a spherical one.) Apart from the octahemioctahedron, the hemipolyhedra