Riesz basis property of weak eigenfunctions for boundary-value problem with discontinuities at two interior points
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2013 ◽
2017 ◽
Vol 447
(1)
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pp. 84-108
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2000 ◽
Vol 191
(3)
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pp. 359-368
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2000 ◽
Vol 23
(18)
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pp. 1585-1615
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