Characteristic determinant of the spectral problem for the ordinary differential operator with the boundary load
1978 ◽
Vol 82
(1-2)
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pp. 117-134
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2016 ◽
Vol 60
(2)
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pp. 451-460
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2020 ◽
Vol 89
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pp. 105298
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2013 ◽
Vol 7
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pp. 2385-2390