Solution 7 to problem l112o13


Expressions | Parameters | Relevance | Back to problem l112o13

Expressions

The solution is given through the following expressions:

b42=0


b41=0


            2                    1    2
      - 3*a0 *b22 - a0*a4*b39 + ---*a4 *b9
                                 2
b40=---------------------------------------
                     a0*a4


b38=0


b37=0


b36=0


b35=0


         1                     1
      - ---*a0*b19 - a4*b31 + ---*a4*b9
         2                     2
b34=------------------------------------
                     a4


         1            1
      - ---*a0*b19 + ---*a4*b9
         2            2
b33=---------------------------
                a4


      - a0*b19 + a4*b9
b32=-------------------
            a4


b30=0


b29=0


b28=0


b27=0


b26=0


b25=0


               1
     a0*b10 - ---*a0*b9
               3
b24=--------------------
             a4


      1
     ---*a3*b22
      2
b23=------------
         a0


                    1
     3*a0*a3*b22 + ---*a3*a4*b19
                    2
b21=-----------------------------
                a0*a4


b20=0


      1
     ---*a4*b9
      2
b18=-----------
        a0


     a3*b19
b17=--------
       a4


      1                           1
     ---*a0*a3*b19 - a3*a4*b10 + ---*a3*a4*b9
      2                           2
b16=------------------------------------------
                      a0*a4


      1               1
     ---*a0*a3*b19 + ---*a3*a4*b10
      2               2
b15=-------------------------------
                 a0*a4


b14=0


b13=0


b12=0


b11= - 2*b10 + b9


    1
b8=---*b9
    2


                 1
     - a3*b10 + ---*a3*b9
                 2
b7=-----------------------
             a4


     1
    ---*a3*b9
     2
b6=-----------
       a4


b5=0


b4=0


b3=0


b2=0


     1
    ---*a0*b9
     6
b1=-----------
       a4


a8=0


a7=0


     1
    ---*a3*a4
     2
a5=-----------
       a0


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, b22, b19, b10, b9, a3, a0, a4

Relevance for the application:

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df(u,t)=

      2                               1        2
 u *a0  + u *a0*a6 + f(v,v )*a0*a3 + ---*f(v,v) *a3*a4 + f(v,v)*a0*a4*u
  x        x              x           2
------------------------------------------------------------------------
                                   a0

df(v,t)=v *a6
         x

          1        2       1
df(u,s)=(---*u  *a0 *b9 + ---*u  *f(v,v)*a0*a4*b9 + u *f(v,v )*a0*a4*b9
          6   3x           2   2x                    x      x

             1           2   2       1
          + ---*u *f(v,v) *a4 *b9 + ---*f(v ,v  )*a0*a3*b9
             2   x                   2     x  2x

             1                               1
          + ---*f(v ,v )*f(v,v)*a0*a3*b19 + ---*f(v ,v )*f(v,v)*a3*a4*b10
             2     x  x                      2     x  x

                                                         1
          + f(v ,v )*a0*a4*b10*u - f(v,v  )*a0*a3*b10 + ---*f(v,v  )*a0*a3*b9
               x  x                     3x               2       3x

             1
          + ---*f(v,v  )*f(v,v)*a0*a3*b19 - f(v,v  )*f(v,v)*a3*a4*b10
             2       2x                          2x

             1
          + ---*f(v,v  )*f(v,v)*a3*a4*b9 - 2*f(v,v  )*a0*a4*b10*u
             2       2x                           2x

                                         2
          + f(v,v  )*a0*a4*b9*u + f(v,v ) *a0*a3*b19
                 2x                    x

                            2              1                2
          + 3*f(v,v )*f(v,v) *a0*a3*b22 + ---*f(v,v )*f(v,v) *a3*a4*b19
                   x                       2       x

                                          1        4
          + f(v,v )*f(v,v)*a0*a4*b19*u + ---*f(v,v) *a3*a4*b22
                 x                        2

                  3
          + f(v,v) *a0*a4*b22*u)/(a0*a4)

               2        1        2
df(v,s)=(v  *a0 *b10 - ---*v  *a0 *b9 + v  *f(v,v)*a0*a4*b31
          3x            3   3x           2x

                         2                                      2
          - v *f(v,v )*a0 *b19 + v *f(v,v )*a0*a4*b9 + v *f(v,v) *a0*a4*b39
             x      x             x      x              x

             1             2          1
          - ---*f(v ,v )*a0 *b19*v + ---*f(v ,v )*a0*a4*b9*v
             2     x  x               2     x  x

             1             2
          - ---*f(v,v  )*a0 *b19*v - f(v,v  )*a0*a4*b31*v
             2       2x                   2x

             1                                           2
          + ---*f(v,v  )*a0*a4*b9*v - 3*f(v,v )*f(v,v)*a0 *b22*v
             2       2x                      x

                                          1                   2
          - f(v,v )*f(v,v)*a0*a4*b39*v + ---*f(v,v )*f(v,v)*a4 *b9*v)/(a0*a4)
                 x                        2       x