The correctness of boundary problems for a second-order differential equation with a self-adjoint negative operator in a Hilbert space
1968 ◽
Vol 2
(2)
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pp. 169-173
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2016 ◽
Vol 23
(1)
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pp. 61-85
1971 ◽
Vol 5
(1)
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pp. 9-18
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2016 ◽
Vol 293
(S1)
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pp. 137-147
1980 ◽
Vol 76
(1)
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pp. 159-173
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1962 ◽
Vol 10
(3)
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pp. 454-468
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2010 ◽
Vol 216
(9)
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pp. 2718-2727
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1931 ◽
Vol 27
(4)
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pp. 546-552
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