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  2. File:Domain coloring x2-1 x-2-i x-2-i d x2+2+2i.xcf - Wikipedia

    en.wikipedia.org/wiki/File:Domain_coloring_x2-1_x...

    English: Domain coloring of the complex function () = () + + on the domain {< <; < <}. Phase is coded by the hue and module by the value. Phase is coded by the hue and module by the value. Image generated by python script conformal.py v0.4 ( Michael J Gruber and JB Cuenot) with Gimp v2.8

  3. Domain coloring - Wikipedia

    en.wikipedia.org/wiki/Domain_coloring

    Domain coloring plot of the function f(x) = ⁠ (x 2 − 1)(x2 − i) 2 / x 2 + 2 + 2i ⁠, using the structured color function described below. In complex analysis, domain coloring or a color wheel graph is a technique for visualizing complex functions by assigning a color to each point of the complex plane. By assigning points on the ...

  4. Covering groups of the alternating and symmetric groups

    en.wikipedia.org/wiki/Covering_groups_of_the...

    For n = 3, the symmetric group is SL(2, 2) ≅ PSL(2, 2) and is its own Schur cover. For n = 4, the Schur cover of the alternating group is given by SL(2, 3) → PSL(2, 3) ≅ A 4, which can also be thought of as the binary tetrahedral group covering the tetrahedral group.

  5. Alternating group - Wikipedia

    en.wikipedia.org/wiki/Alternating_group

    As in the symmetric group, any two elements of A n that are conjugate by an element of A n must have the same cycle shape.The converse is not necessarily true, however. If the cycle shape consists only of cycles of odd length with no two cycles the same length, where cycles of length one are included in the cycle type, then there are exactly two conjugacy classes for this cycle shape (Scott ...

  6. Plotting algorithms for the Mandelbrot set - Wikipedia

    en.wikipedia.org/wiki/Plotting_algorithms_for...

    x:= 0 y:= 0 x2:= 0 y2:= 0 while (x2 + y2 ≤ 4 and iteration < max_iteration) do y:= 2 * x * y + y0 x:= x2 - y2 + x0 x2:= x * x y2:= y * y iteration:= iteration + 1 Note that in the above pseudocode, 2 x y {\displaystyle 2xy} seems to increase the number of multiplications by 1, but since 2 is the multiplier the code can be optimized via ( x ...

  7. Cayley graph - Wikipedia

    en.wikipedia.org/wiki/Cayley_graph

    In mathematics, a Cayley graph, also known as a Cayley color graph, Cayley diagram, group diagram, or color group, [1] is a graph that encodes the abstract structure of a group. Its definition is suggested by Cayley's theorem (named after Arthur Cayley ), and uses a specified set of generators for the group.

  8. Quaternion group - Wikipedia

    en.wikipedia.org/wiki/Quaternion_group

    Another characterization is that a finite p-group in which there is a unique subgroup of order p is either cyclic or a 2-group isomorphic to generalized quaternion group. [13] In particular, for a finite field F with odd characteristic, the 2-Sylow subgroup of SL 2 ( F ) is non-abelian and has only one subgroup of order 2, so this 2-Sylow ...

  9. PSL (2,7) - Wikipedia

    en.wikipedia.org/wiki/PSL(2,7)

    PSL(2, 2) is isomorphic to the symmetric group S 3, and PSL(2, 3) is isomorphic to alternating group A 4. In fact, PSL(2, 7) is the second smallest nonabelian simple group, after the alternating group A 5 = PSL(2, 5) = PSL(2, 4). The number of conjugacy classes and irreducible representations is 6. The sizes of conjugacy classes are 1, 21, 42 ...