Solution 9 to problem l112o13


Expressions | Parameters | Relevance | Back to problem l112o13

Expressions

The solution is given through the following expressions:

b42=0


b41=0


            2                       2
      - 2*a0 *b23 - a0*a5*b39 + 2*a5 *b3
b40=-------------------------------------
                    a0*a5


b38=0


b37=0


b36=0


b35=0


      1               1                2
     ---*a0*a3*b23 - ---*a0*a5*b21 - a5 *b31
      2               4
b34=-----------------------------------------
                         2
                       a5


      1               1
     ---*a0*a3*b23 - ---*a0*a5*b21
      2               4
b33=-------------------------------
                    2
                  a5


     2*a0*a3*b23 - a0*a5*b21
b32=-------------------------
                 2
               a5


b30=0


b29=0


b28=0


b27=0


b26=0


b25=0


b24=0


b22=0


b20=0


b19=0


     2*a5*b3
b18=---------
       a0


            2   2         2                    3        2   2
      - 2*a0 *a3 *b23 + a0 *a3*a5*b21 + 8*a0*a5 *b1 + a3 *a5 *b3
b17=-------------------------------------------------------------
                                 2   2
                               a0 *a5


         1       2        1                     3
      - ---*a0*a3 *b23 + ---*a0*a3*a5*b21 + 4*a5 *b1
         2                4
b16=-------------------------------------------------
                              2
                         a0*a5


         1       2        1                     3
      - ---*a0*a3 *b23 + ---*a0*a3*a5*b21 + 4*a5 *b1
         2                4
b15=-------------------------------------------------
                              2
                         a0*a5


b14=0


b13=0


b12=0


b11=0


b10=0


    2*a3*b3
b9=---------
      a0


b8=0


    a3*b1
b7=-------
     a0


    3*a3*b1
b6=---------
      a0


b5=0


b4=0


b2=0


a8=0


a7=0


a4=0


a2=0


Parameters

Apart from the condition that they must not vanish to give a non-trivial solution and a non-singular solution with non-vanishing denominators, the following parameters are free:
 b39, b31, b23, b21, b3, b1, a3, a5, a0

Relevance for the application:

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                                           2
df(u,t)=u *a0 + u *a6 + f(v,v )*a3 + f(v,v) *a5
         x       x           x

df(v,t)=v *a6
         x

               2   2        2   2   2                           2
df(u,s)=(u  *a0 *a5 *b1 + u  *a0 *a5 *b3 + 2*u *f(v,v )*a0*a3*a5 *b3
          3x               x                  x      x

                       2      3                          2
          + 2*u *f(v,v) *a0*a5 *b3 + 3*f(v ,v  )*a0*a3*a5 *b1
               x                          x  2x

             1                    2   2        1                    2
          - ---*f(v ,v )*f(v,v)*a0 *a3 *b23 + ---*f(v ,v )*f(v,v)*a0 *a3*a5*b21
             2     x  x                        4     x  x

                                   3                       2
          + 4*f(v ,v )*f(v,v)*a0*a5 *b1 + f(v,v  )*a0*a3*a5 *b1
                 x  x                          3x

             1                    2   2        1                    2
          - ---*f(v,v  )*f(v,v)*a0 *a3 *b23 + ---*f(v,v  )*f(v,v)*a0 *a3*a5*b21
             2       2x                        4       2x

                                   3               2   2   2
          + 4*f(v,v  )*f(v,v)*a0*a5 *b1 - 2*f(v,v ) *a0 *a3 *b23
                   2x                            x

                   2   2                      2      3             2   2   2
          + f(v,v ) *a0 *a3*a5*b21 + 8*f(v,v ) *a0*a5 *b1 + f(v,v ) *a3 *a5 *b3
                 x                          x                    x

                          2   2   2             4   2   2         2   2
          + f(v,v )*f(v,v) *a0 *a5 *b21 + f(v,v) *a0 *a5 *b23)/(a0 *a5 )
                 x

                         2                      2
df(v,s)=(v  *f(v,v)*a0*a5 *b31 + 2*v *f(v,v )*a0 *a3*b23
          2x                        x      x

                         2                   2      2
          - v *f(v,v )*a0 *a5*b21 + v *f(v,v) *a0*a5 *b39
             x      x                x

             1             2             1             2
          + ---*f(v ,v )*a0 *a3*b23*v - ---*f(v ,v )*a0 *a5*b21*v
             2     x  x                  4     x  x

             1             2             1             2
          + ---*f(v,v  )*a0 *a3*b23*v - ---*f(v,v  )*a0 *a5*b21*v
             2       2x                  4       2x

                          2                            2
          - f(v,v  )*a0*a5 *b31*v - 2*f(v,v )*f(v,v)*a0 *a5*b23*v
                 2x                        x

                                2                            3             2
          - f(v,v )*f(v,v)*a0*a5 *b39*v + 2*f(v,v )*f(v,v)*a5 *b3*v)/(a0*a5 )
                 x                               x