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Schwarz triangle function information


The upper half-plane, and the image of the upper half-plane transformed by the Schwarz triangle function with various parameters.

In complex analysis, the Schwarz triangle function or Schwarz s-function is a function that conformally maps the upper half plane to a triangle in the upper half plane having lines or circular arcs for edges. The target triangle is not necessarily a Schwarz triangle, although that is the most mathematically interesting case. When that triangle is a non-overlapping Schwarz triangle, i.e. a Möbius triangle, the inverse of the Schwarz triangle function is a single-valued automorphic function for that triangle's triangle group. More specifically, it is a modular function.

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Schwarz triangle function

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complex analysis, the Schwarz triangle function or Schwarz s-function is a function that conformally maps the upper half plane to a triangle in the upper half...

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Hypergeometric function

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Schwarzian derivative (Hille 1976, pp. 307–401). The Schwarz triangle maps or Schwarz s-functions are ratios of pairs of solutions. s k ( z ) = ϕ k ( 1...

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In mathematics, the triangle inequality states that for any triangle, the sum of the lengths of any two sides must be greater than or equal to the length...

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diverge. The Schwarz lantern demonstrates that sampling a curved surface by close-together points and connecting them by small triangles is inadequate...

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differential equation and f(z) is the Schwarz triangle function, which can be written in terms of hypergeometric functions. For a quadrilateral the accessory...

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Triangle group

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of triangle groups, of which 12 are Hurwitz groups (quotients of the (2,3,7) group). Schwarz triangle The Schwarz triangle map is a map of triangles to...

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List of triangle topics

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triangle Regiomontanus Regiomontanus' angle maximization problem Reuschle's theorem Right triangle Routh's theorem Scalene triangle Schwarz triangle Schiffler's...

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theorem Schwarzian derivative Schwarz triangle map Schwarz reflection principle Additive Schwarz method See his paper (Schwarz 1870b) See the paper (Mikhlin...

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the theory of stochastic processes, a harmonic function is a twice continuously differentiable function f : U → R , {\displaystyle f\colon U\to \mathbb...

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Cosine similarity

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true distance metric as it does not exhibit the triangle inequality property—or, more formally, the Schwarz inequality—and it violates the coincidence axiom...

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String theory

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Becker and Schwarz, p. 1 Zwiebach, p. 6 Becker, Becker and Schwarz, pp. 2–3 Becker, Becker and Schwarz, pp. 9–12 Becker, Becker and Schwarz, pp. 14–15...

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Jacobi elliptic functions

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functions. Elliptic curve Schwarz–Christoffel mapping Carlson symmetric form Jacobi theta function Ramanujan theta function Dixon elliptic functions Abel...

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Complex number

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Every triangle has a unique Steiner inellipse – an ellipse inside the triangle and tangent to the midpoints of the three sides of the triangle. The foci...

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Dixon elliptic functions

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{sm} (0)=0} Or as the inverse of the Schwarz–Christoffel mapping from the complex unit disk to an equilateral triangle, the Abelian integral: z = ∫ 0 sm...

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Minkowski inequality

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{\displaystyle f+g} is in L p ( S ) , {\displaystyle L^{p}(S),} and we have the triangle inequality ‖ f + g ‖ p ≤ ‖ f ‖ p + ‖ g ‖ p {\displaystyle \|f+g\|_{p}\leq...

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Spherical trigonometry

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between the sides and angles of spherical triangles, traditionally expressed using trigonometric functions. On the sphere, geodesics are great circles...

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Exceptional object

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exceptional Schwarz triangles (triangles that tile the sphere, or more generally Euclidean plane or hyperbolic plane via their triangle group of reflections...

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Kaleidocycle

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disphenoids are equilateral triangles, it can be constructed from a stretched triangular tiling net with four triangles in one direction and an even...

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Hurwitz surface

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contexts, the "(2,3,7) triangle group" most often refers, not to the full triangle group Δ(2,3,7) (the Coxeter group with Schwarz triangle (2,3,7) or a realization...

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Homomorphism density

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analyze homomorphism densities is the Cauchy–Schwarz inequality. The effect of applying the Cauchy-Schwarz inequality is "folding" the graph over a line...

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List of numerical analysis topics

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PDE on these subdomains Additive Schwarz method Abstract additive Schwarz method — abstract version of additive Schwarz without reference to geometric information...

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