Spectral theory and nonlinear partial differential equations: A survey
2006 ◽
Vol 15
(3)
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pp. 703-723
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2009 ◽
Vol 50
(1)
◽
pp. 013502
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1997 ◽
Vol 125
(5)
◽
pp. 1483-1485
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1974 ◽
Vol 47
(3)
◽
pp. 520-530
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