注意到此处 Fp→ J=Fle-obiso'ss (11) 2a√t 0=-1G“听
注意到此处 [ ] ( ) [ ] a t a t F e F e 3 2 2 2 1 2 2 2 2 -1 - w -1 - w +w +w = a t x y z e a t 2 2 2 2 4 3 2 1 - + + ÷ ø ö ç è æ = p (11) ( ) ( ) ( ) òò ò¥ -¥ - - \ = 1 4 3 2 1 3 2 2 1 8 1 , r e dr a t u r t a t r r r r r r r j p
三、稳定问题 △=--p(x,y,z) 记(x,y,2)=() px, 3,==ffF) ∫Go=i) ∫!Gk=/0) 则 024o=f(0
三、稳定问题 u (x, y,z) 1 0 r e D = - u(x y z) u(r) r 记 , , = (x y z) f( ) r v , , = 1 0 r e ( ) (w) r w v r r r u r e dr u i r ~ = - × ¥ òòò-¥ ( ) ( ) w r w r r r r f r e dr f i r ~ = ò òò¥ ¥ - × w (w) (w) r r u = f 则 2~