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THE MORSE PROPERTY FOR FUNCTIONS OF KIRCHHOFF-ROUTH PATH TYPE

机译:Kirchhoff-Routh路径类型的摩尔斯特性

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For a bounded domain Ω ⊂ R~n let H_Ω:Ω×Ω→ R be the regular part of the Dirichlet Green function for the Laplace operator. Given a fixed arbitrary C~2 function f : D → R, defined on an open subset D ⊂ R~(nN), and fixed coefficients λ_1, ..., λ_N ∈ R{0} we consider the function f_Ω: D∩Ω~N → R defined as f_Ω(x_1, ..., x_N) = f(x_1,...,x_N) −N∑j,k=1λ_jλ_kH_Ω(x_j , x_k). We prove that f_Ω is a Morse function for most domains Ω of class C~(m+2,α), any m ≥ 0, 0 < α < 1. This applies in particular to the Robin function h : Ω → R, h(x) = H_Ω (x, x), and to the Kirchhoff-Routh path function where Ω ⊂ R~2, D = {x ∈ R~(2N) : xj≠x_k for j≠ k}, and f(x_1, ..., x_N) = −1/2πN∑j,k=1j≠kλ_jλ_k log |x_j − x_k|.
机译:对于有界域ω∈R〜n设ω⊂r〜n设,H_ω:ω×ω→R是Laplace操作员Dirichlet绿色功能的常规部分。给定固定的任意C〜2函数f:d→r,在打开子集d⊂r〜(nn)上定义,以及固定系数λ_1,...,λ_n∈r {0}我们认为功能f_ω:d ∩ω〜n→r定义为f_ω(x_1,...,x_n)= f(x_1,...,x_n)-nσj,k =1λ_jλ_kh_ω(x_j,x_k)。我们证明F_ω是C〜(M + 2,α)的大多数域ω的摩尔斯函数,任何M≥0,0 <α<1.这尤其适用于Robin函数H:ω→R,H (x)=h_ω(x,x),以及kirchhoff-routh路径函数,其中ω⊂r〜2,d = {x∈r〜(2n):xj≠x_k forj∈k},f(x_1 ,...,x_n)= -1 /2πnσj,k =1j≠kλ_jλ_klog | x_j - x_k |。

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