A Full System of Invariants for Third-Order Linear Partial Differential Operators
2008 ◽
pp. 199-212
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1983 ◽
Vol 8
(6)
◽
pp. 643-665
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2007 ◽
Vol 1
(2)
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pp. 225-237
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2009 ◽
pp. 154-169
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2017 ◽
Vol 291
(8-9)
◽
pp. 1240-1268
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