Local Solvability in L 2 of First Order Linear PDEs
1974 ◽
Vol 15
(1)
◽
pp. 195-209
◽
1979 ◽
Vol 33
(2)
◽
pp. 239-248
◽
2015 ◽
pp. 1158-1167
2016 ◽
Vol 94
◽
pp. 107-110
◽
1995 ◽
Vol 121
(2)
◽
pp. 406-416
◽
1996 ◽
Vol 197
(1)
◽
pp. 42-53
◽
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