Infinitely many nonlocal symmetries and conservation laws for the (1+1)-dimensional Sine–Gordon equation
2015 ◽
Vol 421
(1)
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pp. 685-696
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2017 ◽
Vol 24
(1)
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pp. 93-106
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2003 ◽
Vol 20
(7)
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pp. 1003-1005
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Symmetries of generalized Klein-Gordon (including sine-Gordon) equations in three or more dimensions
1987 ◽
Vol 101
(2)
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pp. 343-348
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1987 ◽
Vol 102
(3)
◽
pp. 573-586
Keyword(s):
1982 ◽
Vol 91
(3)
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pp. 485-489
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Keyword(s):