Coerciveness in ?2 of general boundary-value problems for a degenerate second-order elliptic equation
1969 ◽
Vol 2
(3)
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pp. 261-262
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1976 ◽
pp. 135-151
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2019 ◽
Vol 51
(1)
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pp. 15-21
2007 ◽
Vol 59
(7)
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pp. 955-975
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