منابع مشابه
BOUNDARY VALUE PROBLEM FOR r 2 d 2 f / dr 2 + f = f 3 ( I ) : EXISTENCE AND UNIQUENESS
We study the equation r2d2f/dr2 + f = f 3 with the boundary conditions f(1)= 0, f(∞)= 1, and f(r) > 0 for 1< r <∞. The existence of the solution is proved using a topological shooting argument. And the uniqueness is proved by a variation method. 2000 Mathematics Subject Classification. 34B15, 34D05, 34E10, 81T13.
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ژورنال
عنوان ژورنال: Nature
سال: 1947
ISSN: 0028-0836,1476-4687
DOI: 10.1038/159394a0