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Brelot spaces of Schroedinger equations

机译:Schroedinger方程的Brelot空间

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Consider a Radon measure μ of not necessarily constant sign on a subregion W of the Euclidean space R~d of dimension d≧2. A function u on an open subset U of W is said to be μ-harmonic on U if u is continuous on U and satisfies the Schroedinger equation (-Δ+μ)u=0 on U in the sense of distributions. The family of μ-harmonic functions on open subsets of W determines a sheaf H_μ, of functions on W (cf. §1.1 below), i.e., H_μ(U) is the set of μ-harmonic functions on U. In order for us to be able to effectively discuss various global structures such as the Martin boundary related to the equation (-Δ+μ)u=0 on W, it is the least requirement for the sheaf H_μ to give rise to a Brelot harmonic space, or simply Brelot space, (W, H_μ) (cf. § 1.2). This paper concerns the question under what condition on μ the sheaf H_μ generates a Brelot space (W, H_μ). It was shown by Boukricha for a positive measure μ and by Boukricha-Hansen-Hueber for a signed measure μ that (W, H_μ) is a Brelot space if μ is of Kato class (cf. § 2.2).
机译:考虑在尺寸d≥2的欧几里德空间R〜d的子区域W上的拉德度量μ不一定是恒定的。如果u在U上是连续的并且在分布的意义上满足U的Schroedinger方程(-Δ+μ)u = 0,则W的开放子集U上的函数u被称为u上的μ谐波。 W的开放子集上的μ谐波函数族决定了W上函数的捆H_μ(参见下面的§1.1),即H_μ(U)是U上的μ谐波函数的集合。为了能够有效地讨论各种全局结构,例如与W上的方程(-Δ+μ)u = 0相关的马丁边界,对于捆H_μ产生Brelot谐波空间的要求最少,或者简单地Brelot空间,(W,H_μ)(请参阅第1.2节)。本文关注的问题是,在什么条件下,捆H_μ会产生Brelot空间(W,H_μ)。 Boukricha对正值μ进行了显示,而Boukricha-Hansen-Hueber对有符号度μ进行了显示,如果μ为Kato类,则(W,H_μ)为Brelot空间(参见2.2节)。

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