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Douady rabbit

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3688: 3700: 3432: 3492: 3480: 2396: 138: 3724: 3610: 3664: 2008: 3709: 3598: 887: 3420: 906: 2815: 1634: 2391:{\displaystyle {\begin{aligned}{\mathcal {M}}B(z_{1})&=B(z_{2}){\;}{\mathrm {or} }{\;}{\mathcal {M}}{\;}{\mathrm {red} }\subseteq {\mathrm {green} },\\{\mathcal {M}}B(z_{2})&=B(z_{3}){\;}{\mathrm {or} }{\;}{\mathcal {M}}{\;}{\mathrm {green} }\subseteq {\mathrm {yellow} },\\{\mathcal {M}}B(z_{3})&=B(z_{1}){\;}{\mathrm {or} }{\;}{\mathcal {M}}{\;}{\mathrm {yellow} }\subseteq {\mathrm {red} }.\end{aligned}}} 726: 3739: 694: 895: 3676: 2561: 1386: 2402: 3751: 3763: 2810:{\displaystyle {\begin{aligned}z_{1}&=0.500003730675024+(6.968273875812428\times 10^{-6})i{\;}{\;}({\mathrm {red} }),\\z_{2}&=-0.138169999969259+(0.239864000061970)i{\;}{\;}({\mathrm {green} }),\\z_{3}&=-0.238618870661709-(0.264884797354373)i{\;}{\;}({\mathrm {yellow} }).\end{aligned}}} 1629:{\displaystyle {\begin{aligned}z_{1}&=0.499997032420304-(1.221880225696050\times 10^{-6})i{\;}{\;}{\mathrm {(red)} },\\z_{2}&=0.638169999974373-(0.239864000011495)i{\;}{\;}{\mathrm {(green)} },\\z_{3}&=0.799901291393262-(0.107547238170383)i{\;}{\;}{\mathrm {(yellow)} }.\end{aligned}}} 3161: 436: 2533: 1242: 2566: 2013: 1391: 3200: 2438: 1997: 1950: 1903: 3320: 3235: 2473: 2903: 808: 3155: 498: 212: 3625:
In the early 1980s, Hubbard posed the so-called twisted rabbit problem, a polynomial classification problem. The goal is to determine Thurston equivalence types of functions of
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of one another, or more specifically a similarity transformation, consisting of only scaling, rotation and translation, the filled Julia sets look
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is within one of these four sprouts, the associated filled Julia set in the mapping plane is said to be a Douady rabbit. For these values of
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is invariant under this transformation). This rabbit is more symmetrical in the plane. The period-three fixed points then are located at
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quadratic whose branch point is periodic with period three, determining which quadratic polynomial it is Thurston equivalent to
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James Belk; Justin Lanier; Dan Margalit; Rebecca R. Winarski (2019). "Recognizing Topological Polynomials by Lifting Trees".
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ranging over the plane. The resulting image can be colored by corresponding each pixel with a starting value
3750: 3920:"Twisted Three-Eared Rabbits: Identifying Topological Quadratics Up To Thurston Equivalence by Adam Chodof" 2873: 933:
as shown in the graph above. In this figure, the Mandelbrot set superficially appears as two back-to-back
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of twisted rabbits, i.e. composite of the rabbit polynomial with nth powers of Dehn twists about its ears.
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Laurent Bartholdi; Volodymyr Nekrashevych (2005). "Thurston equivalence of topological polynomials".
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Laurent Bartholdi; Volodymyr Nekrashevych (2006). "Thurston equivalence of topological polynomials".
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has three attracting fixed points. A Douady rabbit consists of the three attracting fixed points
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The problem was originally solved by Laurent Bartholdi and Volodymyr Nekrashevych using iterated
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on points near the origin consists of a counterclockwise rotation about the origin of
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that usually are not given by a formula (these are called topological polynomials):
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You can also describe the Douady rabbit utilising the Mandelbrot set with respect to
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Gray levels indicate the speed of convergence to infinity or to the attractive cycle
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An example of a Douady rabbit. The colors show the number of iterations required to
3876: 3779: 3730: 3438: 3160: 2905:. The three major lobes on the left, which contain the period-three fixed points 2401: 3789: 3784: 3327: 894: 693: 4086: 4078: 3862: 3347: 3323: 3274: 3250: 431:{\displaystyle z_{n+1}={\mathcal {M}}z_{n}:=\gamma z_{n}\left(1-z_{n}\right).} 4072:"Lie Methods for Nonlinear Dynamics with Applications to Accelerator Physics" 4060: 3950: 934: 290: 1244:, a point in the five-o'clock sprout of the right disk. For this value of 3901:
Note on dynamically stable perturbations of parabolics by Tomoki Kawahira
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Adrien Douady: La dynamique du lapin (1996) - video on the YouTube
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is fixed to lie in one of the two period three bulb off the main
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and one other point as unstable (repelling) fixed points, and
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escapes a bounded region, after which it will diverge toward
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ears For example, a period four bulb rabbit has three ears.
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plane. The Douady rabbit is visible in the cross-section.
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This article incorporates material from Douady Rabbit on
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As a second example, Figure 5 shows a Douady rabbit when
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The Julia set has no direct analog in three dimensions.
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is the symmetrical image of the rabbit. Here parameter
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Corresponding to these relations there are the results
2528:{\displaystyle \gamma =2-\gamma _{D}=-.55268+.959456i} 37: 3566: 3513: 3398: 3356: 3290: 3259: 3208: 3170: 3127: 3100: 3068: 3044: 3018: 2992: 2965: 2938: 2911: 2876: 2850: 2826: 2564: 2541: 2484: 2446: 2411: 2011: 1958: 1911: 1864: 1840: 1813: 1784: 1753: 1717: 1681: 1645: 1389: 1355: 1320: 1294: 1270: 1250: 1237:{\displaystyle \gamma =\gamma _{D}=2.55268-0.959456i} 1202: 1182: 1176:
For example, Figure 4 shows the Douady rabbit in the
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The red, green, and yellow points lie in the basins
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Moreover, the map 503:Irrespective of the specific iteration used, the 4091:Creative Commons Attribution/Share-Alike License 3121:, followed by scaling (dilation) by a factor of 1858:on these fixed points is given by the relations 909:Representation of the dynamics inside the rabbit 154:The Douady rabbit is generated by iterating the 878:for either form of the iteration given above. 8: 3441:copy of rabbit in the center of a Julia set 3330:of their post-critical set are the rabbit. 3195:{\displaystyle \gamma =-0.55268+0.959456i} 2770: 2767: 2694: 2691: 2624: 2621: 2341: 2331: 2318: 2212: 2202: 2189: 2092: 2082: 2069: 1589: 1586: 1516: 1513: 1449: 1446: 830:has additional horizontal symmetry. Since 4032: 4011: 3852: 3565: 3512: 3397: 3355: 3289: 3258: 3207: 3169: 3136: 3128: 3126: 3105: 3099: 3067: 3046: 3045: 3043: 3017: 2991: 2970: 2964: 2943: 2937: 2916: 2910: 2875: 2849: 2828: 2827: 2825: 2776: 2775: 2769: 2766: 2732: 2700: 2699: 2693: 2690: 2656: 2630: 2629: 2623: 2620: 2605: 2573: 2565: 2563: 2540: 2501: 2483: 2445: 2433:{\displaystyle \gamma =2.55268-0.959456i} 2410: 2369: 2368: 2344: 2343: 2340: 2334: 2333: 2330: 2321: 2320: 2317: 2308: 2282: 2266: 2265: 2237: 2236: 2215: 2214: 2211: 2205: 2204: 2201: 2192: 2191: 2188: 2179: 2153: 2137: 2136: 2111: 2110: 2095: 2094: 2091: 2085: 2084: 2081: 2072: 2071: 2068: 2059: 2033: 2017: 2016: 2012: 2010: 1992:{\displaystyle {\mathcal {M}}z_{3}=z_{1}} 1983: 1970: 1960: 1959: 1957: 1945:{\displaystyle {\mathcal {M}}z_{2}=z_{3}} 1936: 1923: 1913: 1912: 1910: 1898:{\displaystyle {\mathcal {M}}z_{1}=z_{2}} 1889: 1876: 1866: 1865: 1863: 1842: 1841: 1839: 1815: 1814: 1812: 1783: 1762: 1756: 1755: 1752: 1728: 1716: 1692: 1680: 1656: 1644: 1592: 1591: 1588: 1585: 1554: 1519: 1518: 1515: 1512: 1481: 1452: 1451: 1448: 1445: 1430: 1398: 1390: 1388: 1364: 1358: 1357: 1354: 1319: 1293: 1272: 1271: 1269: 1249: 1213: 1201: 1181: 1157: 1151: 1130: 1124: 1103: 1097: 1076: 1070: 1069: 1066: 1040: 1014: 993: 992: 990: 970: 950: 918: 855: 835: 815: 783: 763: 736: 704: 670: 650: 630: 610: 585: 579: 558: 552: 532: 512: 478: 473: 454: 448: 414: 393: 377: 367: 366: 351: 345: 304: 298: 273: 267: 247: 223: 192: 187: 168: 162: 94: 64: 42: 36: 3315:{\displaystyle c\approx -0.1226-0.7449i} 3800: 3659: 3590: 3560:th bulb of the main cardioid will have 3475: 3230:{\displaystyle \mu =0.122565-0.744864i} 2468:{\displaystyle \mu =0.122565-0.744864i} 1349:. The three attracting fixed points of 3038:. It can be shown that the effect of 890:Douady rabbit in an exponential family 2898:{\displaystyle z=1.450795+0.7825835i} 810:, the Mandelbrot set with respect to 16:Fractal related to the mandelbrot set 7: 803:{\displaystyle \gamma \to 2-\gamma } 778:is invariant under the substitution 3756:A Douady rabbit on a red background 3150:{\displaystyle |\gamma |=1.1072538} 493:{\displaystyle w_{n+1}=w_{n}^{2}+c} 327:It can also be described using the 207:{\displaystyle z_{n+1}=z_{n}^{2}+c} 2792: 2789: 2786: 2783: 2780: 2777: 2713: 2710: 2707: 2704: 2701: 2637: 2634: 2631: 2376: 2373: 2370: 2360: 2357: 2354: 2351: 2348: 2345: 2325: 2322: 2253: 2250: 2247: 2244: 2241: 2238: 2228: 2225: 2222: 2219: 2216: 2196: 2193: 2124: 2121: 2118: 2115: 2112: 2102: 2099: 2096: 2076: 2073: 1791: 1771:{\displaystyle {\mathcal {M}}^{3}} 1611: 1608: 1605: 1602: 1599: 1596: 1535: 1532: 1529: 1526: 1523: 1462: 1459: 1456: 1373:{\displaystyle {\mathcal {M}}^{3}} 1342:{\displaystyle z=.656747-.129015i} 1085:{\displaystyle {\mathcal {M}}^{3}} 1048: 547:) consists of all starting points 14: 507:associated with a given value of 109:is near the center of one of the 3761: 3749: 3737: 3722: 3707: 3698: 3686: 3674: 3662: 3608: 3596: 3490: 3478: 3430: 3418: 1173:and their basins of attraction. 724: 692: 3988:from the original on 2022-11-01 3957:from the original on 2019-10-23 3932:from the original on 2022-05-03 3883:from the original on 2022-05-03 3821:from the original on 2022-11-01 3507:In general, the rabbit for the 3381:{\displaystyle c=-0.123+0.745i} 3249:is the composition of a rabbit 1288:has the repelling fixed points 4089:, which is licensed under the 3547: 3535: 3137: 3129: 3081: 3075: 3055:{\displaystyle {\mathcal {M}}} 2837:{\displaystyle {\mathcal {M}}} 2820:The repelling fixed points of 2797: 2772: 2760: 2754: 2718: 2696: 2684: 2678: 2642: 2626: 2614: 2592: 2314: 2301: 2288: 2275: 2185: 2172: 2159: 2146: 2065: 2052: 2039: 2026: 1851:{\displaystyle {\mathcal {M}}} 1824:{\displaystyle {\mathcal {M}}} 1794: 1788: 1734: 1721: 1698: 1685: 1662: 1649: 1614: 1593: 1579: 1573: 1538: 1520: 1506: 1500: 1465: 1453: 1439: 1417: 1281:{\displaystyle {\mathcal {M}}} 1002:{\displaystyle {\mathcal {M}}} 788: 289:and calculating the amount of 54: 48: 1: 3457:has c at the root of the 1/3- 3087:{\displaystyle \arg(\gamma )} 293:required before the value of 79:{\textstyle f_{c}(z)=z^{2}+c} 3553:{\displaystyle period-(n+1)} 3164:Figure 5: Douady rabbit for 3114:{\displaystyle 120^{\circ }} 2405:Figure 4: Douady rabbit for 605:consists of those values of 4128: 3350:Julia set with parameters 2986:, meet at the fixed point 1800:{\displaystyle B(\infty )} 731:The Mandelbrot set in the 699:The Mandelbrot set in the 3863:10.1007/s11511-006-0007-3 3768:A chain of Douady rabbits 3744:Multibrot-4 Douady rabbit 1054:{\displaystyle z=\infty } 3906:October 2, 2006, at the 3681:Boundaries of level sets 1740:{\displaystyle B(z_{3})} 1704:{\displaystyle B(z_{2})} 1668:{\displaystyle B(z_{1})} 4056:"Douady Rabbit Fractal" 3322:. It is one of 2 other 1257:{\displaystyle \gamma } 985:, it can be shown that 978:{\displaystyle \gamma } 958:{\displaystyle \gamma } 926:{\displaystyle \gamma } 901:of the rabbit Julia set 823:{\displaystyle \gamma } 712:{\displaystyle \gamma } 658:{\displaystyle \gamma } 618:{\displaystyle \gamma } 520:{\displaystyle \gamma } 441:which is equivalent to 3621:Twisted rabbit problem 3574: 3554: 3409: 3382: 3316: 3267: 3237: 3231: 3196: 3151: 3115: 3088: 3056: 3032: 3006: 2980: 2953: 2926: 2899: 2864: 2844:itself are located at 2838: 2811: 2549: 2529: 2475: 2469: 2434: 2392: 1993: 1946: 1899: 1852: 1825: 1801: 1772: 1741: 1705: 1669: 1630: 1374: 1343: 1308: 1282: 1258: 1238: 1190: 1167: 1140: 1113: 1086: 1055: 1029: 1003: 979: 959: 927: 910: 902: 891: 872:affine transformations 864: 844: 824: 804: 772: 745: 713: 679: 659: 639: 619: 595: 568: 541: 521: 494: 432: 314: 283: 256: 232: 208: 146: 103: 80: 3615:Perturbed rabbit zoom 3575: 3555: 3467:parabolic fixed point 3410: 3383: 3317: 3268: 3232: 3197: 3163: 3152: 3116: 3089: 3057: 3033: 3007: 2981: 2979:{\displaystyle z_{3}} 2954: 2952:{\displaystyle z_{2}} 2927: 2925:{\displaystyle z_{1}} 2900: 2865: 2839: 2812: 2550: 2530: 2470: 2435: 2404: 2393: 1994: 1947: 1900: 1853: 1826: 1802: 1773: 1742: 1706: 1670: 1631: 1375: 1344: 1309: 1283: 1259: 1239: 1191: 1168: 1166:{\displaystyle z_{3}} 1141: 1139:{\displaystyle z_{2}} 1114: 1112:{\displaystyle z_{1}} 1087: 1056: 1030: 1004: 980: 960: 928: 908: 897: 889: 865: 845: 825: 805: 773: 746: 714: 680: 660: 640: 620: 596: 594:{\displaystyle w_{0}} 569: 567:{\displaystyle z_{0}} 542: 522: 495: 433: 335:complex quadratic map 315: 313:{\displaystyle z_{n}} 284: 282:{\displaystyle z_{0}} 257: 233: 209: 140: 119:complex quadratic map 104: 81: 3693:Binary decomposition 3564: 3511: 3497:Parabolic chessboard 3396: 3354: 3288: 3257: 3206: 3168: 3125: 3098: 3066: 3042: 3016: 2990: 2963: 2936: 2909: 2874: 2848: 2824: 2562: 2548:{\displaystyle \mu } 2539: 2482: 2444: 2409: 2009: 1956: 1909: 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820: 800: 768: 741: 709: 675: 655: 635: 615: 591: 564: 537: 517: 490: 469: 428: 310: 279: 252: 228: 218:, where parameter 204: 183: 156:Mandelbrot set map 147: 124:It is named after 111:period three bulbs 99: 76: 3650:monodromic groups 3642:equivalence class 3588:Perturbed rabbit 3573:{\displaystyle n} 3437:A small embedded 3266:{\displaystyle n} 3094:, or very nearly 2758:0.264884797354373 2749:0.238618870661709 2682:0.239864000061970 2673:0.138169999969259 2596:6.968273875812428 2587:0.500003730675024 1577:0.107547238170383 1568:0.799901291393262 1504:0.239864000011495 1495:0.638169999974373 1421:1.221880225696050 1412:0.499997032420304 1189:{\displaystyle z} 863:{\displaystyle w} 843:{\displaystyle z} 330:logistic map form 255:{\displaystyle z} 231:{\displaystyle c} 102:{\displaystyle c} 27:derived from the 4119: 4075: 4066: 4065: 4039: 4038: 4036: 4024: 4018: 4017: 4015: 4003: 3997: 3996: 3994: 3993: 3987: 3980: 3972: 3966: 3965: 3963: 3962: 3947: 3941: 3940: 3938: 3937: 3931: 3924: 3916: 3910: 3898: 3892: 3891: 3889: 3888: 3873: 3867: 3866: 3856: 3841:Acta Mathematica 3836: 3830: 3829: 3827: 3826: 3820: 3813: 3805: 3765: 3753: 3741: 3726: 3711: 3702: 3690: 3678: 3666: 3640:determining the 3612: 3603:Perturbed rabbit 3600: 3592:Perturbed rabbit 3579: 3577: 3576: 3571: 3559: 3557: 3556: 3551: 3494: 3482: 3434: 3422: 3414: 3412: 3411: 3406: 3387: 3385: 3384: 3379: 3321: 3319: 3318: 3313: 3277:about its ears. 3272: 3270: 3269: 3264: 3236: 3234: 3233: 3228: 3201: 3199: 3198: 3193: 3156: 3154: 3153: 3148: 3140: 3132: 3120: 3118: 3117: 3112: 3110: 3109: 3093: 3091: 3090: 3085: 3061: 3059: 3058: 3053: 3051: 3050: 3037: 3035: 3034: 3029: 3011: 3009: 3008: 3003: 2985: 2983: 2982: 2977: 2975: 2974: 2958: 2956: 2955: 2950: 2948: 2947: 2931: 2929: 2928: 2923: 2921: 2920: 2904: 2902: 2901: 2896: 2869: 2867: 2866: 2861: 2843: 2841: 2840: 2835: 2833: 2832: 2816: 2814: 2813: 2808: 2806: 2796: 2795: 2771: 2768: 2737: 2736: 2717: 2716: 2695: 2692: 2661: 2660: 2641: 2640: 2625: 2622: 2613: 2612: 2578: 2577: 2554: 2552: 2551: 2546: 2534: 2532: 2531: 2526: 2506: 2505: 2474: 2472: 2471: 2466: 2439: 2437: 2436: 2431: 2397: 2395: 2394: 2389: 2387: 2380: 2379: 2364: 2363: 2342: 2339: 2338: 2332: 2329: 2328: 2319: 2313: 2312: 2287: 2286: 2271: 2270: 2257: 2256: 2232: 2231: 2213: 2210: 2209: 2203: 2200: 2199: 2190: 2184: 2183: 2158: 2157: 2142: 2141: 2128: 2127: 2106: 2105: 2093: 2090: 2089: 2083: 2080: 2079: 2070: 2064: 2063: 2038: 2037: 2022: 2021: 1998: 1996: 1995: 1990: 1988: 1987: 1975: 1974: 1965: 1964: 1951: 1949: 1948: 1943: 1941: 1940: 1928: 1927: 1918: 1917: 1904: 1902: 1901: 1896: 1894: 1893: 1881: 1880: 1871: 1870: 1857: 1855: 1854: 1849: 1847: 1846: 1830: 1828: 1827: 1822: 1820: 1819: 1806: 1804: 1803: 1798: 1777: 1775: 1774: 1769: 1767: 1766: 1761: 1760: 1746: 1744: 1743: 1738: 1733: 1732: 1710: 1708: 1707: 1702: 1697: 1696: 1674: 1672: 1671: 1666: 1661: 1660: 1635: 1633: 1632: 1627: 1625: 1618: 1617: 1590: 1587: 1559: 1558: 1542: 1541: 1517: 1514: 1486: 1485: 1469: 1468: 1450: 1447: 1438: 1437: 1403: 1402: 1379: 1377: 1376: 1371: 1369: 1368: 1363: 1362: 1348: 1346: 1345: 1340: 1313: 1311: 1310: 1305: 1287: 1285: 1284: 1279: 1277: 1276: 1263: 1261: 1260: 1255: 1243: 1241: 1240: 1235: 1218: 1217: 1195: 1193: 1192: 1187: 1172: 1170: 1169: 1164: 1162: 1161: 1145: 1143: 1142: 1137: 1135: 1134: 1118: 1116: 1115: 1110: 1108: 1107: 1091: 1089: 1088: 1083: 1081: 1080: 1075: 1074: 1060: 1058: 1057: 1052: 1034: 1032: 1031: 1026: 1008: 1006: 1005: 1000: 998: 997: 984: 982: 981: 976: 964: 962: 961: 956: 932: 930: 929: 924: 869: 867: 866: 861: 849: 847: 846: 841: 829: 827: 826: 821: 809: 807: 806: 801: 777: 775: 774: 769: 750: 748: 747: 742: 728: 718: 716: 715: 710: 696: 684: 682: 681: 676: 664: 662: 661: 656: 644: 642: 641: 636: 624: 622: 621: 616: 600: 598: 597: 592: 590: 589: 573: 571: 570: 565: 563: 562: 546: 544: 543: 538: 526: 524: 523: 518: 505:filled Julia set 499: 497: 496: 491: 482: 477: 465: 464: 437: 435: 434: 429: 424: 420: 419: 418: 398: 397: 382: 381: 372: 371: 362: 361: 319: 317: 316: 311: 309: 308: 288: 286: 285: 280: 278: 277: 261: 259: 258: 253: 237: 235: 234: 229: 213: 211: 210: 205: 196: 191: 179: 178: 108: 106: 105: 100: 85: 83: 82: 77: 69: 68: 47: 46: 31:of the function 4127: 4126: 4122: 4121: 4120: 4118: 4117: 4116: 4097: 4096: 4069: 4051: 4050: 4047: 4042: 4026: 4025: 4021: 4005: 4004: 4000: 3991: 3989: 3985: 3978: 3974: 3973: 3969: 3960: 3958: 3949: 3948: 3944: 3935: 3933: 3929: 3922: 3918: 3917: 3913: 3908:Wayback Machine 3899: 3895: 3886: 3884: 3875: 3874: 3870: 3838: 3837: 3833: 3824: 3822: 3818: 3811: 3807: 3806: 3802: 3798: 3776: 3769: 3766: 3757: 3754: 3745: 3742: 3733: 3727: 3718: 3712: 3703: 3694: 3691: 3682: 3679: 3670: 3667: 3658: 3627:complex numbers 3623: 3616: 3613: 3604: 3601: 3586: 3562: 3561: 3509: 3508: 3505: 3498: 3495: 3486: 3483: 3447: 3428: 3394: 3393: 3352: 3351: 3344: 3336: 3286: 3285: 3255: 3254: 3243: 3204: 3203: 3166: 3165: 3123: 3122: 3101: 3096: 3095: 3064: 3063: 3040: 3039: 3014: 3013: 2988: 2987: 2966: 2961: 2960: 2939: 2934: 2933: 2912: 2907: 2906: 2872: 2871: 2846: 2845: 2822: 2821: 2804: 2803: 2738: 2728: 2725: 2724: 2662: 2652: 2649: 2648: 2601: 2579: 2569: 2560: 2559: 2537: 2536: 2497: 2480: 2479: 2442: 2441: 2407: 2406: 2385: 2384: 2304: 2291: 2278: 2262: 2261: 2175: 2162: 2149: 2133: 2132: 2055: 2042: 2029: 2007: 2006: 1979: 1966: 1954: 1953: 1932: 1919: 1907: 1906: 1885: 1872: 1860: 1859: 1836: 1835: 1809: 1808: 1780: 1779: 1754: 1749: 1748: 1724: 1713: 1712: 1688: 1677: 1676: 1652: 1641: 1640: 1623: 1622: 1560: 1550: 1547: 1546: 1487: 1477: 1474: 1473: 1426: 1404: 1394: 1385: 1384: 1356: 1351: 1350: 1316: 1315: 1290: 1289: 1266: 1265: 1246: 1245: 1209: 1198: 1197: 1178: 1177: 1153: 1148: 1147: 1126: 1121: 1120: 1099: 1094: 1093: 1068: 1063: 1062: 1037: 1036: 1011: 1010: 987: 986: 967: 966: 947: 946: 915: 914: 884: 852: 851: 832: 831: 812: 811: 780: 779: 760: 759: 756: 755: 754: 753: 752: 733: 732: 729: 721: 720: 701: 700: 697: 667: 666: 647: 646: 627: 626: 607: 606: 581: 576: 575: 554: 549: 548: 529: 528: 509: 508: 450: 445: 444: 410: 403: 399: 389: 373: 347: 342: 341: 337:, specifically 300: 295: 294: 269: 264: 263: 244: 243: 220: 219: 164: 159: 158: 152: 91: 90: 60: 38: 33: 32: 17: 12: 11: 5: 4125: 4123: 4115: 4114: 4109: 4099: 4098: 4082: 4081: 4076: 4067: 4046: 4045:External links 4043: 4041: 4040: 4019: 4013:math/0510082v3 3998: 3967: 3942: 3911: 3893: 3868: 3831: 3799: 3797: 3794: 3793: 3792: 3787: 3782: 3775: 3772: 3771: 3770: 3767: 3760: 3758: 3755: 3748: 3746: 3743: 3736: 3734: 3728: 3721: 3719: 3713: 3706: 3704: 3697: 3695: 3692: 3685: 3683: 3680: 3673: 3671: 3668: 3661: 3657: 3654: 3646: 3645: 3638: 3622: 3619: 3618: 3617: 3614: 3607: 3605: 3602: 3595: 3593: 3585: 3582: 3569: 3549: 3546: 3543: 3540: 3537: 3534: 3531: 3528: 3525: 3522: 3519: 3516: 3504: 3501: 3500: 3499: 3496: 3489: 3487: 3484: 3477: 3463:Mandelbrot set 3446: 3443: 3427: 3424: 3404: 3401: 3377: 3374: 3371: 3368: 3365: 3362: 3359: 3343: 3340: 3335: 3332: 3311: 3308: 3305: 3302: 3299: 3296: 3293: 3262: 3247:twisted rabbit 3242: 3239: 3226: 3223: 3220: 3217: 3214: 3211: 3191: 3188: 3185: 3182: 3179: 3176: 3173: 3146: 3143: 3139: 3135: 3131: 3108: 3104: 3083: 3080: 3077: 3074: 3071: 3049: 3027: 3024: 3021: 3001: 2998: 2995: 2973: 2969: 2946: 2942: 2919: 2915: 2894: 2891: 2888: 2885: 2882: 2879: 2859: 2856: 2853: 2831: 2818: 2817: 2802: 2799: 2794: 2791: 2788: 2785: 2782: 2779: 2774: 2765: 2762: 2759: 2756: 2753: 2750: 2747: 2744: 2741: 2739: 2735: 2731: 2727: 2726: 2723: 2720: 2715: 2712: 2709: 2706: 2703: 2698: 2689: 2686: 2683: 2680: 2677: 2674: 2671: 2668: 2665: 2663: 2659: 2655: 2651: 2650: 2647: 2644: 2639: 2636: 2633: 2628: 2619: 2616: 2611: 2608: 2604: 2600: 2597: 2594: 2591: 2588: 2585: 2582: 2580: 2576: 2572: 2568: 2567: 2544: 2524: 2521: 2518: 2515: 2512: 2509: 2504: 2500: 2496: 2493: 2490: 2487: 2464: 2461: 2458: 2455: 2452: 2449: 2429: 2426: 2423: 2420: 2417: 2414: 2399: 2398: 2383: 2378: 2375: 2372: 2367: 2362: 2359: 2356: 2353: 2350: 2347: 2337: 2327: 2324: 2316: 2311: 2307: 2303: 2300: 2297: 2294: 2292: 2290: 2285: 2281: 2277: 2274: 2269: 2264: 2263: 2260: 2255: 2252: 2249: 2246: 2243: 2240: 2235: 2230: 2227: 2224: 2221: 2218: 2208: 2198: 2195: 2187: 2182: 2178: 2174: 2171: 2168: 2165: 2163: 2161: 2156: 2152: 2148: 2145: 2140: 2135: 2134: 2131: 2126: 2123: 2120: 2117: 2114: 2109: 2104: 2101: 2098: 2088: 2078: 2075: 2067: 2062: 2058: 2054: 2051: 2048: 2045: 2043: 2041: 2036: 2032: 2028: 2025: 2020: 2015: 2014: 1986: 1982: 1978: 1973: 1969: 1963: 1939: 1935: 1931: 1926: 1922: 1916: 1892: 1888: 1884: 1879: 1875: 1869: 1845: 1834:The action of 1818: 1796: 1793: 1790: 1787: 1765: 1759: 1736: 1731: 1727: 1723: 1720: 1700: 1695: 1691: 1687: 1684: 1664: 1659: 1655: 1651: 1648: 1637: 1636: 1621: 1616: 1613: 1610: 1607: 1604: 1601: 1598: 1595: 1584: 1581: 1578: 1575: 1572: 1569: 1566: 1563: 1561: 1557: 1553: 1549: 1548: 1545: 1540: 1537: 1534: 1531: 1528: 1525: 1522: 1511: 1508: 1505: 1502: 1499: 1496: 1493: 1490: 1488: 1484: 1480: 1476: 1475: 1472: 1467: 1464: 1461: 1458: 1455: 1444: 1441: 1436: 1433: 1429: 1425: 1422: 1419: 1416: 1413: 1410: 1407: 1405: 1401: 1397: 1393: 1392: 1367: 1361: 1338: 1335: 1332: 1329: 1326: 1323: 1303: 1300: 1297: 1275: 1253: 1233: 1230: 1227: 1224: 1221: 1216: 1212: 1208: 1205: 1185: 1160: 1156: 1133: 1129: 1106: 1102: 1079: 1073: 1050: 1047: 1044: 1024: 1021: 1018: 996: 974: 954: 922: 883: 880: 859: 839: 819: 799: 796: 793: 790: 787: 767: 740: 730: 723: 722: 708: 698: 691: 690: 689: 688: 687: 674: 654: 634: 614: 603:Mandelbrot set 588: 584: 561: 557: 536: 516: 489: 486: 481: 476: 472: 468: 463: 460: 457: 453: 439: 438: 427: 423: 417: 413: 409: 406: 402: 396: 392: 388: 385: 380: 376: 370: 365: 360: 357: 354: 350: 307: 303: 276: 272: 251: 227: 203: 200: 195: 190: 186: 182: 177: 174: 171: 167: 151: 148: 115:Mandelbrot set 98: 75: 72: 67: 63: 59: 56: 53: 50: 45: 41: 15: 13: 10: 9: 6: 4: 3: 2: 4124: 4113: 4110: 4108: 4105: 4104: 4102: 4095: 4094: 4092: 4088: 4080: 4077: 4073: 4068: 4063: 4062: 4057: 4054: 4049: 4048: 4044: 4035: 4030: 4023: 4020: 4014: 4009: 4002: 3999: 3984: 3977: 3971: 3968: 3956: 3952: 3946: 3943: 3928: 3921: 3915: 3912: 3909: 3905: 3902: 3897: 3894: 3882: 3878: 3872: 3869: 3864: 3860: 3855: 3850: 3846: 3842: 3835: 3832: 3817: 3810: 3804: 3801: 3795: 3791: 3788: 3786: 3783: 3781: 3778: 3777: 3773: 3764: 3759: 3752: 3747: 3740: 3735: 3732: 3731:external rays 3725: 3720: 3717: 3710: 3705: 3701: 3696: 3689: 3684: 3677: 3672: 3665: 3660: 3655: 3653: 3651: 3643: 3639: 3636: 3632: 3631: 3630: 3628: 3620: 3611: 3606: 3599: 3594: 3591: 3589: 3583: 3581: 3567: 3544: 3541: 3538: 3532: 3529: 3526: 3523: 3520: 3517: 3514: 3502: 3493: 3488: 3481: 3476: 3474: 3472: 3468: 3464: 3460: 3456: 3455:chubby rabbit 3452: 3444: 3442: 3440: 3435: 3433: 3425: 3423: 3421: 3416: 3402: 3399: 3391: 3390:cross-section 3375: 3372: 3369: 3366: 3363: 3360: 3357: 3349: 3341: 3339: 3333: 3331: 3329: 3325: 3309: 3306: 3303: 3300: 3297: 3294: 3291: 3283: 3278: 3276: 3260: 3252: 3248: 3240: 3224: 3221: 3218: 3215: 3212: 3209: 3189: 3186: 3183: 3180: 3177: 3174: 3171: 3162: 3158: 3144: 3141: 3133: 3106: 3102: 3078: 3072: 3069: 3025: 3022: 3019: 2999: 2996: 2993: 2971: 2967: 2944: 2940: 2917: 2913: 2892: 2889: 2886: 2883: 2880: 2877: 2857: 2854: 2851: 2800: 2763: 2757: 2751: 2748: 2745: 2742: 2740: 2733: 2729: 2721: 2687: 2681: 2675: 2672: 2669: 2666: 2664: 2657: 2653: 2645: 2617: 2609: 2606: 2602: 2598: 2595: 2589: 2586: 2583: 2581: 2574: 2570: 2558: 2557: 2556: 2542: 2522: 2519: 2516: 2513: 2510: 2507: 2502: 2498: 2494: 2491: 2488: 2485: 2462: 2459: 2456: 2453: 2450: 2447: 2427: 2424: 2421: 2418: 2415: 2412: 2403: 2381: 2365: 2309: 2305: 2298: 2295: 2293: 2283: 2279: 2272: 2258: 2233: 2180: 2176: 2169: 2166: 2164: 2154: 2150: 2143: 2129: 2107: 2060: 2056: 2049: 2046: 2044: 2034: 2030: 2023: 2005: 2004: 2003: 2000: 1984: 1980: 1976: 1971: 1967: 1937: 1933: 1929: 1924: 1920: 1890: 1886: 1882: 1877: 1873: 1832: 1785: 1763: 1729: 1725: 1718: 1693: 1689: 1682: 1657: 1653: 1646: 1619: 1582: 1576: 1570: 1567: 1564: 1562: 1555: 1551: 1543: 1509: 1503: 1497: 1494: 1491: 1489: 1482: 1478: 1470: 1442: 1434: 1431: 1427: 1423: 1420: 1414: 1411: 1408: 1406: 1399: 1395: 1383: 1382: 1381: 1365: 1336: 1333: 1330: 1327: 1324: 1321: 1301: 1298: 1295: 1251: 1231: 1228: 1225: 1222: 1219: 1214: 1210: 1206: 1203: 1183: 1174: 1158: 1154: 1131: 1127: 1104: 1100: 1077: 1045: 1042: 1022: 1019: 1016: 972: 952: 944: 940: 936: 920: 907: 900: 896: 888: 881: 879: 877: 873: 857: 837: 817: 797: 794: 791: 785: 765: 738: 727: 706: 695: 686: 672: 652: 632: 612: 604: 586: 582: 559: 555: 534: 514: 506: 501: 487: 484: 479: 474: 470: 466: 461: 458: 455: 451: 442: 425: 421: 415: 411: 407: 404: 400: 394: 390: 386: 383: 378: 374: 363: 358: 355: 352: 348: 340: 339: 338: 336: 332: 331: 325: 323: 305: 301: 292: 274: 270: 249: 241: 225: 217: 216:complex plane 201: 198: 193: 188: 184: 180: 175: 172: 169: 165: 157: 149: 144: 139: 135: 133: 132:Adrien Douady 130: 129:mathematician 127: 122: 120: 116: 112: 96: 89: 73: 70: 65: 61: 57: 51: 43: 39: 30: 26: 22: 21:Douady rabbit 4084: 4083: 4059: 4034:1906.07680v1 4022: 4001: 3990:. Retrieved 3970: 3959:. Retrieved 3945: 3934:. Retrieved 3914: 3896: 3885:. Retrieved 3871: 3854:math/0510082 3844: 3840: 3834: 3823:. Retrieved 3803: 3780:Dragon curve 3647: 3624: 3587: 3506: 3454: 3450: 3448: 3439:homeomorphic 3436: 3429: 3417: 3345: 3337: 3281: 3279: 3246: 3244: 2819: 2477: 2001: 1833: 1638: 1175: 942: 938: 912: 758:Noting that 757: 502: 443: 440: 328: 326: 153: 123: 20: 18: 3790:Siegel disc 3785:Herman ring 3635:topological 3465:. It has a 3328:permutation 3324:polynomials 3275:Dehn twists 1196:plane when 4112:Limit sets 4101:Categories 4087:PlanetMath 4070:Dragt, A. 3992:2022-05-08 3961:2020-04-07 3936:2022-05-03 3887:2022-05-03 3825:2022-05-03 3796:References 3503:n-th eared 3485:Fat rabbit 3451:fat rabbit 3348:quaternion 3273:powers of 3251:polynomial 1264:, the map 935:unit disks 899:Lamination 291:iterations 150:Background 4061:MathWorld 3584:Perturbed 3533:− 3364:− 3304:− 3298:− 3295:≈ 3219:− 3210:μ 3178:− 3172:γ 3145:1.1072538 3134:γ 3107:∘ 3079:γ 3073:⁡ 2890:0.7825835 2752:− 2746:− 2670:− 2607:− 2599:× 2543:μ 2511:− 2499:γ 2495:− 2486:γ 2457:− 2448:μ 2422:− 2413:γ 2366:⊆ 2234:⊆ 2108:⊆ 1792:∞ 1571:− 1498:− 1432:− 1424:× 1415:− 1331:− 1252:γ 1226:− 1211:γ 1204:γ 1049:∞ 973:γ 953:γ 921:γ 818:γ 798:γ 795:− 789:→ 786:γ 766:μ 739:μ 707:γ 673:μ 653:γ 633:μ 613:γ 535:μ 515:γ 408:− 387:γ 88:parameter 29:Julia set 4107:Fractals 3983:Archived 3955:Archived 3927:Archived 3904:Archived 3881:Archived 3847:: 1–51. 3816:Archived 3774:See also 3633:given a 3426:Embedded 3282:corabbit 3241:Variants 3222:0.744864 3216:0.122565 3187:0.959456 2884:1.450795 2460:0.744864 2454:0.122565 2425:0.959456 1229:0.959456 322:infinity 240:cardioid 3656:Gallery 3469:with 3 3461:of the 3392:in the 3181:0.55268 2520:.959456 2419:2.55268 1334:.129015 1328:.656747 1223:2.55268 939:sprouts 876:similar 333:of the 214:on the 113:of the 86:, when 25:fractal 3471:petals 3388:and a 3307:0.7449 3301:0.1226 2959:, and 2514:.55268 1952:, and 1711:, and 1146:, and 143:escape 126:French 117:for a 4029:arXiv 4008:arXiv 3986:(PDF) 3979:(PDF) 3930:(PDF) 3923:(PDF) 3849:arXiv 3819:(PDF) 3812:(PDF) 3729:With 3716:spine 3714:With 3373:0.745 3367:0.123 3253:with 937:with 751:plane 719:plane 23:is a 3459:limb 3449:The 3280:The 2870:and 1314:and 1009:has 943:buds 870:are 850:and 625:(or 574:(or 527:(or 242:and 3859:doi 3845:197 3453:or 3445:Fat 3202:or 3103:120 3070:arg 2440:or 1807:of 1747:of 941:or 665:or 121:. 4103:: 4058:. 3981:. 3953:. 3925:. 3879:. 3857:. 3843:. 3814:. 3473:. 3346:A 3342:4D 3334:3D 3245:A 3157:. 2603:10 1999:. 1905:, 1831:. 1675:, 1428:10 1119:, 685:. 500:. 384::= 324:. 134:. 19:A 4093:. 4074:. 4064:. 4037:. 4031:: 4016:. 4010:: 3995:. 3964:. 3939:. 3890:. 3865:. 3861:: 3851:: 3828:. 3568:n 3548:) 3545:1 3542:+ 3539:n 3536:( 3530:d 3527:o 3524:i 3521:r 3518:e 3515:p 3403:y 3400:x 3376:i 3370:+ 3361:= 3358:c 3310:i 3292:c 3261:n 3225:i 3213:= 3190:i 3184:+ 3175:= 3142:= 3138:| 3130:| 3082:) 3076:( 3048:M 3026:1 3023:= 3020:z 3000:0 2997:= 2994:z 2972:3 2968:z 2945:2 2941:z 2932:, 2918:1 2914:z 2893:i 2887:+ 2881:= 2878:z 2858:0 2855:= 2852:z 2830:M 2801:. 2798:) 2793:w 2790:o 2787:l 2784:l 2781:e 2778:y 2773:( 2764:i 2761:) 2755:( 2743:= 2734:3 2730:z 2722:, 2719:) 2714:n 2711:e 2708:e 2705:r 2702:g 2697:( 2688:i 2685:) 2679:( 2676:+ 2667:= 2658:2 2654:z 2646:, 2643:) 2638:d 2635:e 2632:r 2627:( 2618:i 2615:) 2610:6 2593:( 2590:+ 2584:= 2575:1 2571:z 2523:i 2517:+ 2508:= 2503:D 2492:2 2489:= 2463:i 2451:= 2428:i 2416:= 2382:. 2377:d 2374:e 2371:r 2361:w 2358:o 2355:l 2352:l 2349:e 2346:y 2336:M 2326:r 2323:o 2315:) 2310:1 2306:z 2302:( 2299:B 2296:= 2289:) 2284:3 2280:z 2276:( 2273:B 2268:M 2259:, 2254:w 2251:o 2248:l 2245:l 2242:e 2239:y 2229:n 2226:e 2223:e 2220:r 2217:g 2207:M 2197:r 2194:o 2186:) 2181:3 2177:z 2173:( 2170:B 2167:= 2160:) 2155:2 2151:z 2147:( 2144:B 2139:M 2130:, 2125:n 2122:e 2119:e 2116:r 2113:g 2103:d 2100:e 2097:r 2087:M 2077:r 2074:o 2066:) 2061:2 2057:z 2053:( 2050:B 2047:= 2040:) 2035:1 2031:z 2027:( 2024:B 2019:M 1985:1 1981:z 1977:= 1972:3 1968:z 1962:M 1938:3 1934:z 1930:= 1925:2 1921:z 1915:M 1891:2 1887:z 1883:= 1878:1 1874:z 1868:M 1844:M 1817:M 1795:) 1789:( 1786:B 1764:3 1758:M 1735:) 1730:3 1726:z 1722:( 1719:B 1699:) 1694:2 1690:z 1686:( 1683:B 1663:) 1658:1 1654:z 1650:( 1647:B 1620:. 1615:) 1612:w 1609:o 1606:l 1603:l 1600:e 1597:y 1594:( 1583:i 1580:) 1574:( 1565:= 1556:3 1552:z 1544:, 1539:) 1536:n 1533:e 1530:e 1527:r 1524:g 1521:( 1510:i 1507:) 1501:( 1492:= 1483:2 1479:z 1471:, 1466:) 1463:d 1460:e 1457:r 1454:( 1443:i 1440:) 1435:6 1418:( 1409:= 1400:1 1396:z 1366:3 1360:M 1337:i 1325:= 1322:z 1302:0 1299:= 1296:z 1274:M 1232:i 1220:= 1215:D 1207:= 1184:z 1159:3 1155:z 1132:2 1128:z 1105:1 1101:z 1078:3 1072:M 1046:= 1043:z 1023:0 1020:= 1017:z 995:M 858:w 838:z 792:2 587:0 583:w 560:0 556:z 488:c 485:+ 480:2 475:n 471:w 467:= 462:1 459:+ 456:n 452:w 426:. 422:) 416:n 412:z 405:1 401:( 395:n 391:z 379:n 375:z 369:M 364:= 359:1 356:+ 353:n 349:z 306:n 302:z 275:0 271:z 250:z 226:c 202:c 199:+ 194:2 189:n 185:z 181:= 176:1 173:+ 170:n 166:z 145:. 97:c 74:c 71:+ 66:2 62:z 58:= 55:) 52:z 49:( 44:c 40:f

Index

fractal
Julia set
parameter
period three bulbs
Mandelbrot set
complex quadratic map
French
mathematician
Adrien Douady

escape
Mandelbrot set map
complex plane
cardioid
iterations
infinity
logistic map form
complex quadratic map
filled Julia set
Mandelbrot set


affine transformations
similar


Lamination

unit disks

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