Singular perturbation of non-self-adjoint elliptic eigenvalue problems
2012 ◽
Vol 54
(2-3)
◽
pp. 492-512
◽
2005 ◽
Vol 184
(3)
◽
pp. 297-314
◽
1965 ◽
Vol 71
(4)
◽
pp. 644-649
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2012 ◽
Vol 218
(19)
◽
pp. 9596-9613
◽
2018 ◽
Vol 340
◽
pp. 340-365
◽
1984 ◽
pp. 106-114