John椭球在无界凸区域上Szego核中的应用
An application of John ellipsoids to the Szego kernel on unbounded convex domains
摘要:
利用凸几何工具,特别是John椭球,得到了$\mathbb{C}^n.$中一类无界凸区域边界上SzegIgnkernel的大小估计。给定满足一定增长条件的多项式$b:\mathbb{R}^n \rightarrow \mathbb{R}$,我们考虑$Ω_b = \{ z\in\mathbb{C}^{n+1}\,:\, {\rm Im}[z_{n+1}] > b({\rm Re}[z_1],\ldots,{\rm Re}[z_n]) \}.$型区域
英文摘要:
We use convex geometry tools, in particular John ellipsoids, to obtain a size estimate for the Szegő kernel on the boundary of a class of unbounded convex domains in $\mathbb{C}^n.$ Given a polynomial $b:\mathbb{R}^n \rightarrow \mathbb{R}$ satisfying a certain growth condition, we consider domains of the type $Ω_b = \{ z\in\mathbb{C}^{n+1}\,:\, {\rm Im}[z_{n+1}] > b({\rm Re}[z_1],\ldots,{\rm Re}[z_n]) \}.$
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