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arXiv 1502.03402math-phmath.CAmath.MPnlin.SI
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Painlevé II超越的过渡渐近性

Transition asymptotics for the Painlevé II transcendent

Thomas Bothner

备注：
71 pages, 26 figures. Version 2 corrects typos
发表信息：
Duke Math. J. 166, no. 2 (2017), 205-324
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摘要：

我们考虑第二类Painlevé方程$u_{xx}=xu+2u^3$的实值解$u=u(x|s),x\in\mathbb{R}$，它是用相应的Flaschka-Newell有理微分方程组的单值数据$s\equiv(s_1,s_2,s_3)\subset\mathbb{C}^3$参数化的.我们的分析描述的过渡，作为$x\rightarrow-\infty$，振荡功率衰减渐近之间的$|s_1|<1$（Ablowitz-Segur）的功率增长行为的$|s_1|=1$（Hastings-McLeod）和从后者的奇异振荡功率增长的$|s_1|>1$（Kapaev）。证明了转移渐近性是Boutroux型的，即它们用Jacobi椭圆函数表示。作为我们的结果的应用，我们得到的Airy核行列式$\det(I-γK_{\textnormal{Ai}})|_{L^2(x,\infty)}$在双标度极限$x\rightarrow-\infty,γ\uparrow 1$以及渐近的$K_{\textnormal{Ai}}$的频谱。

英文摘要：

We consider real-valued solutions $u=u(x|s),x\in\mathbb{R}$ of the second Painlevé equation $u_{xx}=xu+2u^3$ which are parametrized in terms of the monodromy data $s\equiv(s_1,s_2,s_3)\subset\mathbb{C}^3$ of the associated Flaschka-Newell system of rational differential equations. Our analysis describes the transition, as $x\rightarrow-\infty$, between the oscillatory power-like decay asymptotics for $|s_1|<1$ (Ablowitz-Segur) to the power-like growth behavior for $|s_1|=1$ (Hastings-McLeod) and from the latter to the singular oscillatory power-like growth for $|s_1|>1$ (Kapaev). It is shown that the transition asymptotics are of Boutroux type, i.e. they are expressed in terms of Jacobi elliptic functions. As applications of our results we obtain asymptotics for the Airy kernel determinant $\det(I-γK_{\textnormal{Ai}})|_{L^2(x,\infty)}$ in a double scaling limit $x\rightarrow-\infty,γ\uparrow 1$ as well as asymptotics for the spectrum of $K_{\textnormal{Ai}}$.

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