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  2. Geometric function theory - Wikipedia

    en.wikipedia.org/wiki/Geometric_function_theory

    A rectangular grid (top) and its image under a conformal map f (bottom). It is seen that f maps pairs of lines intersecting at 90° to pairs of curves still intersecting at 90°. A conformal map is a function which preserves angles locally. In the most common case the function has a domain and range in the complex plane. More formally, a map,

  3. Train track map - Wikipedia

    en.wikipedia.org/wiki/Train_track_map

    Let f : Γ → Γ be a combinatorial map and let E be the set of oriented edges of Γ. Then f determines its derivative map Df : E → E where for every edge e Df(e) is the initial edge of the path f(e). The map Df naturally extends to the map Df : T → T where T is the set of all turns in Γ.

  4. List of chaotic maps - Wikipedia

    en.wikipedia.org/wiki/List_of_chaotic_maps

    In mathematics, a chaotic map is a map (an evolution function) that exhibits some sort of chaotic behavior. Maps may be parameterized by a discrete-time or a continuous-time parameter. Maps may be parameterized by a discrete-time or a continuous-time parameter.

  5. Logistic map - Wikipedia

    en.wikipedia.org/wiki/Logistic_map

    These are properties of the logistic map for most values of r between about 3.57 and 4 (as noted above). [ May, Robert M. (1976) 1 ] A common source of such sensitivity to initial conditions is that the map represents a repeated folding and stretching of the space on which it is defined.

  6. Map (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Map_(mathematics)

    A map is a function, as in the association of any of the four colored shapes in X to its color in Y In mathematics , a map or mapping is a function in its general sense. [ 1 ] These terms may have originated as from the process of making a geographical map : mapping the Earth surface to a sheet of paper.

  7. Projection (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Projection_(mathematics)

    The commutativity of this diagram is the universality of the projection π, for any map f and set X.. Generally, a mapping where the domain and codomain are the same set (or mathematical structure) is a projection if the mapping is idempotent, which means that a projection is equal to its composition with itself.

  8. Inversive geometry - Wikipedia

    en.wikipedia.org/wiki/Inversive_geometry

    The circle inversion map is anticonformal, which means that at every point it preserves angles and reverses orientation (a map is called conformal if it preserves oriented angles). Algebraically, a map is anticonformal if at every point the Jacobian is a scalar times an orthogonal matrix with negative determinant: in two dimensions the Jacobian ...

  9. Arnold's cat map - Wikipedia

    en.wikipedia.org/wiki/Arnold's_cat_map

    In Arnold's native Russian, the map is known as "okroshka (cold soup) from a cat" (Russian: окрошка из кошки), in reference to the map's mixing properties, and which forms a play on words. Arnold later wrote that he found the name "Arnold's Cat" by which the map is known in English and other languages to be "strange". [2]