ВУЗ:
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Рубрика:
S = {x} K x
K
+
1
(x, 0) = {(y, t) ∈ R × (0, ∞) : at > |y − x|}
n = 1
K
+
2
(x, 0) = {(y, t) ∈ R
2
× (0, ∞) : at > |y − x|}
n = 2
Γ
+
3
(x, 0) = ∂K
+
3
(x, 0) = {(y, t) ∈ R
3
× (0, ∞) : at = |y −x|}
n = 3
x
t
K
t
x
K
(x, t) ∈ R
n+1
+
u
Ω
u(x, t) Ω n = 1
(x, t) I
at
(x)
Σ
at
(x) Ω n = 3
(x, t) ∈ R
4
+
S
at
(x)
Ω
S
