The Pentagram Map
The Pentagram Map
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五角星地图
DOI:
10.1080/10586458.1992.10504248
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发表时间:
1992
期刊:
影响因子:
--
通讯作者:
R. Schwartz
中科院分区:
文献类型:
--
作者:
R. Schwartz
We consider the pentagram map on the space of plane convex pentagons obtained by drawing a pentagon's diagonals, recovering unpublished results of Conway and proving new ones. We generalize this to a “pentagram map” on convex polygons of more than five sides, showing that iterated images of anyinitial polygon converge exponentially fast to a point. We conjecture that the asymptotic behavior of this convergence is the same as under a projective transformation. Finally, we show a connection between the pentagram map and a certain flow defined on parametrized curves.