Nonlinear potential filtration equation and global actions of Lie symmetries
The Lie point symmetries of the nonlinear potential filtration equation break into five cases. Contact symmetries provide another two cases. By restricting to a natural class of functions, we show that these symmetries exponentiate to a global action of the corresponding Lie group in four of the...
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| Format: | Article |
| Language: | English |
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Texas State University
2009-08-01
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| Series: | Electronic Journal of Differential Equations |
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| Online Access: | http://ejde.math.txstate.edu/Volumes/2009/101/abstr.html |