描述Perron tree.svg	English: Construction of a Perron tree by dividing a triangle into ${\displaystyle 2^{n}}$ subtriangles and recombining them with partial overlaps. Cases ${\displaystyle n=1}$ and ${\displaystyle n=3}$ are illustrated.
日期	2013年1月30日, 04:26 (UTC)
来源	本文件衍生自： Perrontree2.jpg:
作者	Perrontree2.jpg: Jazzam derivative work: Mikhail Ryazanov

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This image is a derivative work of the following images:

• File:Perrontree2.jpg licensed with PD-self
  • 2007-04-05T04:53:44Z Jazzam 1155x1270 (299791 Bytes) This is an illustration of the method of constructing different sizes of Kakeya sets using the 'sprouting' method, in which the final shapes are what are called Perron trees. One starts with a triangle, and then partitions it

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