A comparison of some lower bounds for eigenvalues of Schrodinger's equation
1983 ◽
Vol 16
(14)
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pp. 3291-3311
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1964 ◽
Vol 43
(1-4)
◽
pp. 15-26
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Keyword(s):
1992 ◽
Vol 41
(6)
◽
pp. 829-844
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2017 ◽
Vol 74
(12)
◽
pp. 3318-3327
Keyword(s):