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arXiv math-ph/0004002math-phmath.DGmath.MPmath.SP
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Dirac型算子的半有界限制与唯一连续性

Semi-Bounded Restrictions of Dirac Type Operators and the Unique Continuation Property

Christian Baer, Alexander Strohmaier

摘要:

设M是连通黎曼流形,D是作用在M上Hermitian向量丛的光滑紧支集上的Dirac型算子。设D在平方可积截面的希尔伯特空间中有自伴扩张A。我们证明了任何包含在闭A-不变子空间中的$L^2$ -截$ϕ$具有唯一的连续性:如果$ϕ$在M的一个非空开子集上为零,则它在M的所有开子集上为零.

英文摘要:

Let M be a connected Riemannian manifold and let D be a Dirac type operator acting on smooth compactly supported sections in a Hermitian vector bundle over M. Suppose D has a self-adjoint extension A in the Hilbert space of square-integrable sections. We show that any $L^2$-section $ϕ$ contained in a closed A-invariant subspace onto which the restriction of A is semi-bounded has the unique continuation property: if $ϕ$ vanishes on a non-empty open subset of M, then it vanishes on all of M.

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