Introducing isodynamic points for binary forms and their ratios
Introducing isodynamic points for binary forms and their ratios
复制标题
介绍二元形式的等力点及其比率
DOI:
10.1007/s40627-022-00112-4
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Shapiro, Michael
中科院分区:
文献类型:
--
作者:
Hägg, Christian;Shapiro, Boris;Shapiro, Michael
The isodynamic points of a plane triangle are known to be the only pair of its centers invariant under the action of the Möbius groupon the set of triangles, Kimberling (Encyclopedia of Triangle Centers, http://faculty.evansville.edu/ck6/encyclopedia). Generalizing this classical result, we introduce below theisodynamicmap associating to a univariate polynomial of degreewith at most double roots a polynomial of degree (at most)such that this map commutes with the action of the Möbius groupon the zero loci of the initial polynomial and its image. The roots of the image polynomial will be called theisodynamic pointsof the preimage polynomial. Our construction naturally extends from univariate polynomials to binary forms and further to their ratios.
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