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arXiv 0704.2391math.AG
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具有$D_4^{(1)},B_3^{(1)},G_2^{(1)},D_3^{(2)}$和$A_2^{(2)}$型仿射外尔群对称性的三维常微分系统

Ordinary differential systems in dimension three with affine Weyl group symmetry of types $D_4^{(1)},B_3^{(1)},G_2^{(1)},D_3^{(2)}$ and $A_2^{(2)}$

Yusuke Sasano

摘要:

提出一类具有$D_4^{(1)}$型仿射外尔群对称性的三维四参数常微分系统.通过求出其首次积分,可将该方程组化为Painlevé型二阶非线性常微分方程.我们还研究了该系统限制其参数。每个系统都可以通过连接$D_4^{(1)}$型系统中的一些不变因子而得到。每个系统分别具有$B_3^{(1)},G_2^{(1)},D_3^{(2)}$和$A_2^{(2)}$型仿射外尔群对称性。这些对称性、全纯条件和不变因子都是新的。

英文摘要:

We present a four-parameter family of ordinary differential systems in dimension three with affine Weyl group symmetry of type $D_4^{(1)}$. By obtaining its first integral, we can reduce this system to the second-order non-linear ordinary differential equations of Painlevé type. We also study this system restricted its parameters. Each system can be obtained by connecting some invariant divisors in the system of type $D_4^{(1)}$. Each system admits affine Weyl group symmetry of types $B_3^{(1)},G_2^{(1)},D_3^{(2)}$ and $A_2^{(2)}$, respectively. These symmetries, holomorphy conditions and invariant divisors are new.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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