The condition that the family of surfaces φ(x, y, z, λ) = 0 may be one of an orthogonal triad.
| Autor: | Edwardes, F. E. |
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| Zdroj: | Proceedings of the Edinburgh Mathematical Society; Feb1987, Vol. 30 Issue 1, p37-38, 2p |
| Databáze: | Complementary Index |
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