An inverse nodal problem for two-parameter Sturm–Liouville systems

An inverse nodal problem for two-parameter Sturm–Liouville systems
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DOI:
10.1088/0266-5611/25/8/085005
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发表时间:
2009-08
期刊:
影响因子:
2.1
通讯作者:
P. Binding;B. Watson
P. Binding;B. Watson
中科院分区:
数学2区
文献类型:
--
作者:
P. Binding;B. Watson

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本文考虑由特征值对(λ,μ)连接的Sturm-Liouville方程组的稠密节点序列中势qj <$L1和(分离的)边界条件参数的唯一性和重构。在“右定”条件a1(t1)b2(t1)− b1(t1)a2(t2)> 0下,对于所有t1,t2,我们证明了对于每个j = 1,2,一个节点序列,对于每个本征函数yjk,k = 1,2,.,一个点,对于我们的目的是足够的。
We consider uniqueness and reconstruction of the potentials qj ∊ L1, and of the (separated) boundary condition parameters, from a dense sequence of nodal points for a two-parameter system of Sturm–Liouville equations linked by the eigenvalue pairs (λ, μ). Under the ‘right definiteness’ condition a1(t1)b2(t1) − b1(t1)a2(t2) > 0 for all t1, t2, we show that a single sequence of nodal points for each j = 1, 2, one point for each eigenfunction yjk, k = 1, 2, …, suffices for our purposes.