Преобразование Кельвина
1) n > 2 u*(x) = u(x*) |x*| = → ∞ (x → 0) u(x*) → 0 (|x*| → ∞) |
2) n = 2 u*(x) = u(x*) |x*| = → ∞ (x → 0) |u(x*)| ≤ M (|x*| → ∞) |
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u*(x) = o = o(E(x)) (x → 0) |
u*(x) = o(ln|x|) = o(E(x)) (x → 0) |