Методы математической физики - 161 стр.

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Ψ(t, x)
(1 2xt + t
2
) Ψ
t
(x t) Ψ = 0 ,
t Ψ
t
(x t) Ψ
x
= 0 .
Ψ(t, x)
X
`=0
` P
`
(x) t
`1
2x
X
`=0
` P
`
(x) t
`
+
X
`=0
` P
`
(x) t
`+1
x
X
`=0
P
`
(x) t
`
+
X
`=0
P
`
(x) t
`+1
= 0 .
` 1 `
0
` + 1 `
0
X
`
0
=1
(`
0
+ 1) P
`
0
+1
(x) t
`
0
2x
X
`=0
` P
`
(x) t
`
+
X
`
0
=1
(`
0
1) P
`
0
1
(x) t
`
0
x
X
`=0
P
`
(x) t
`
+
X
`
0
=1
P
`
0
1
(x) t
`
0
= 0 .
`
0
`
` = 0
`
0
= 1
` = 0
t
(` + 1) P
`+1
(x) x (2` + 1) P
`
(x) + ` P
`1
(x) = 0 .
P
0
(x) = 1 P
1
(x) = x