Solution 11 to problem l112o23


Expressions | Parameters | Relevance | Back to problem l112o23

Expressions

The solution is given through the following expressions:

                      1        2
     a1*a18*a6*b38 + ---*a14*a6 *b38
                      4
b42=---------------------------------
                     3
                  a14


     2*a1*a18*b38 + a14*a6*b38
b41=---------------------------
                  2
               a14


         2
     4*a1 *a18*b38 + a1*a14*a6*b38
b40=-------------------------------
                    3
                 a14


                      1        2
     a1*a18*a6*b38 + ---*a14*a6 *b38
                      4
b39=---------------------------------
                   2
                a14 *a18


b37=0


     2*a1*a18*b38 + a14*a6*b38
b36=---------------------------
              a14*a18


     a1*b38
b35=--------
      a14


b34=0


b33=0


         2
     4*a1 *a18*b38 + a1*a14*a6*b38
b32=-------------------------------
                  2
               a14 *a18


b31=0


b30=0


     a14*b38
b29=---------
       a18


b28=0


b27=0


     a1*b38
b26=--------
      a18


b25=0


b24=0


                 2        1        3
      - a1*a18*a6 *b38 - ---*a14*a6 *b38
                          4
b23=-------------------------------------
                       4
                    a14


                                2
      - 2*a1*a18*a6*b38 - a14*a6 *b38
b22=----------------------------------
                      3
                   a14


             2    2                         2        1     2   3
      - 16*a1 *a18 *a6*b38 - 2*a1*a14*a18*a6 *b38 + ---*a14 *a6 *b38
                                                     2
b21=-----------------------------------------------------------------
                                   4
                                a14 *a18


      - a6*b38
b20=-----------
        a14


             2    2                                  2   2
      - 16*a1 *a18 *b38 - 2*a1*a14*a18*a6*b38 + 2*a14 *a6 *b38
b19=-----------------------------------------------------------
                                3
                             a14 *a18


            2    2                            3     2   2
      - 4*a1 *a18 *b38 - a1*a14*a18*a6*b38 + ---*a14 *a6 *b38
                                              4
b18=----------------------------------------------------------
                                3
                             a14 *a18


             3    2           2                          2   2
      - 16*a1 *a18 *b38 + 4*a1 *a14*a18*a6*b38 + 2*a1*a14 *a6 *b38
b17=---------------------------------------------------------------
                                  4
                               a14 *a18


            3    2           2                   3        2   2
      - 8*a1 *a18 *b38 + 4*a1 *a14*a18*a6*b38 + ---*a1*a14 *a6 *b38
                                                 2
b16=----------------------------------------------------------------
                                   4
                                a14 *a18


            3    2           2                   3        2   2
      - 8*a1 *a18 *b38 + 4*a1 *a14*a18*a6*b38 + ---*a1*a14 *a6 *b38
                                                 2
b15=----------------------------------------------------------------
                                   4
                                a14 *a18


b14=0


     2*a6*b38
b13=----------
       a18


     3*a6*b38
b12=----------
       a18


         2
     8*a1 *a18*b38 + 3*a1*a14*a6*b38
b11=---------------------------------
                   2
                a14 *a18


         2
     8*a1 *a18*b38 + 3*a1*a14*a6*b38
b10=---------------------------------
                   2
                a14 *a18


        2
    8*a1 *a18*b38 + 5*a1*a14*a6*b38
b9=---------------------------------
                  2
               a14 *a18


     3
    ---*a1*a6*b38
     2
b8=---------------
       a14*a18


        3             2
    4*a1 *a18*b38 + a1 *a14*a6*b38
b7=--------------------------------
                  3
               a14 *a18


         3               2
    12*a1 *a18*b38 + 3*a1 *a14*a6*b38
b6=-----------------------------------
                   3
                a14 *a18


b5=0


    3*a14*b38
b4=-----------
       a18


    3*a1*b38
b3=----------
      a18


    3*a1*b38
b2=----------
      a18


      2
    a1 *b38
b1=---------
    a14*a18


             2    1
     2*a1*a18  + ---*a14*a18*a6
                  2
a19=----------------------------
                   2
                a14


a17=0


                 1
     2*a1*a18 + ---*a14*a6
                 2
a16=-----------------------
              a14


a15=0


a13=0


a12=0


                2       1            2
      - 2*a1*a18 *a6 - ---*a14*a18*a6
                        2
a11=-----------------------------------
                      3
                   a14


      - a18*a6
a10=-----------
        a14


            2    2                      1     2   2
     - 16*a1 *a18  - 2*a1*a14*a18*a6 + ---*a14 *a6
                                        2
a9=-------------------------------------------------
                            3
                         a14


a8=0


a7=a6


        2
    4*a1 *a18 + a1*a14*a6
a5=-----------------------
               2
            a14


        2
    4*a1 *a18 + a1*a14*a6
a4=-----------------------
               2
            a14


a3=0


a2=2*a14


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:
 b38,a6,a14,a18,a1

Relevance for the application:

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

                   3                3              4                  2
df(u,t)=(u  *a1*a14  + u *f(v,v)*a14 *a6 + 2*u *a14 *u + 4*f(v ,v )*a1 *a14*a18
          2x            x                     x               x  x

                           2                   2                          2
          + f(v ,v )*a1*a14 *a6 + 4*f(v,v  )*a1 *a14*a18 + f(v,v  )*a1*a14 *a6
               x  x                      2x                     2x

                                2    2
          - 16*f(v,v )*f(v,v)*a1 *a18  - 2*f(v,v )*f(v,v)*a1*a14*a18*a6
                    x                           x

             1                    2   2              3
          + ---*f(v,v )*f(v,v)*a14 *a6  + f(v,v )*a14 *a6*u
             2       x                         x

                    3       2       1        3           2
          - 2*f(v,v) *a1*a18 *a6 - ---*f(v,v) *a14*a18*a6
                                    2

                  2    2              3
          - f(v,v) *a14 *a18*a6*u)/a14

                                   1               2            3
df(v,t)=(2*v *f(v,v)*a1*a14*a18 + ---*v *f(v,v)*a14 *a6 + v *a14 *u
            x                      2   x                   x

                    2       2      1        2                          2
          + 2*f(v,v) *a1*a18 *v + ---*f(v,v) *a14*a18*a6*v + f(v,v)*a14 *a18*u*v
                                   2

              2
         )/a14

               2    3        3                   3                      4
df(u,s)=(u  *a1 *a14 *b38 + ---*u  *f(v,v)*a1*a14 *a6*b38 + 3*u  *a1*a14 *b38*u
          3x                 2   2x                            2x

                2       4                      2    2
          + 3*u  *a1*a14 *b38 + 8*u *f(v,v )*a1 *a14 *a18*b38
               x                   x      x

                               3                     2   2        2
          + 5*u *f(v,v )*a1*a14 *a6*b38 - 4*u *f(v,v) *a1 *a14*a18 *b38
               x      x                      x

                     2       2               3           2    3   2
          - u *f(v,v) *a1*a14 *a18*a6*b38 + ---*u *f(v,v) *a14 *a6 *b38
             x                               4   x

                           4                    5      2
          + 3*u *f(v,v)*a14 *a6*b38*u + 3*u *a14 *b38*u
               x                           x

                           3                             2    2
          + 12*f(v ,v  )*a1 *a14*a18*b38 + 3*f(v ,v  )*a1 *a14 *a6*b38
                  x  2x                         x  2x

                                3    2
          - 8*f(v ,v )*f(v,v)*a1 *a18 *b38
                 x  x

                                2
          + 4*f(v ,v )*f(v,v)*a1 *a14*a18*a6*b38
                 x  x

             3                        2   2                    2    2
          + ---*f(v ,v )*f(v,v)*a1*a14 *a6 *b38 + 8*f(v ,v )*a1 *a14 *a18*b38*u
             2     x  x                                x  x

                             3                         3
          + 3*f(v ,v )*a1*a14 *a6*b38*u + 4*f(v,v  )*a1 *a14*a18*b38
                 x  x                            3x

                       2    2                              3    2
          + f(v,v  )*a1 *a14 *a6*b38 - 8*f(v,v  )*f(v,v)*a1 *a18 *b38
                 3x                           2x

                                2
          + 4*f(v,v  )*f(v,v)*a1 *a14*a18*a6*b38
                   2x

             3                        2   2                    2    2
          + ---*f(v,v  )*f(v,v)*a1*a14 *a6 *b38 + 8*f(v,v  )*a1 *a14 *a18*b38*u
             2       2x                                  2x

                             3                      2   3    2
          + 3*f(v,v  )*a1*a14 *a6*b38*u - 16*f(v,v ) *a1 *a18 *b38
                   2x                             x

                     2   2                           2       2   2
          + 4*f(v,v ) *a1 *a14*a18*a6*b38 + 2*f(v,v ) *a1*a14 *a6 *b38
                   x                               x

                             2   2    2
          - 16*f(v,v )*f(v,v) *a1 *a18 *a6*b38
                    x

                            2              2
          - 2*f(v,v )*f(v,v) *a1*a14*a18*a6 *b38
                   x

             1                2    2   3
          + ---*f(v,v )*f(v,v) *a14 *a6 *b38
             2       x

                                2        2
          - 16*f(v,v )*f(v,v)*a1 *a14*a18 *b38*u
                    x

                                   2
          - 2*f(v,v )*f(v,v)*a1*a14 *a18*a6*b38*u
                   x

                                3   2                      4         2
          + 2*f(v,v )*f(v,v)*a14 *a6 *b38*u + 2*f(v,v )*a14 *a6*b38*u
                   x                                 x

                  4       2   2        1        4           3
          - f(v,v) *a1*a18 *a6 *b38 - ---*f(v,v) *a14*a18*a6 *b38
                                       4

                    3           2                  3    2       2
          - 2*f(v,v) *a1*a14*a18 *a6*b38*u - f(v,v) *a14 *a18*a6 *b38*u

                  2    3             2      4
          - f(v,v) *a14 *a18*a6*b38*u )/(a14 *a18)

                     3                       2
df(v,s)=(u *v *a1*a14 *b38 + u *f(v,v)*a1*a14 *a18*b38*v
          x  x                x

                           2                                2
          + 4*v *f(v,v )*a1 *a14*a18*b38 + v *f(v,v )*a1*a14 *a6*b38
               x      x                     x      x

                     2                      1           2    2   2
          + v *f(v,v) *a1*a14*a18*a6*b38 + ---*v *f(v,v) *a14 *a6 *b38
             x                              4   x

                              2                          3
          + 2*v *f(v,v)*a1*a14 *a18*b38*u + v *f(v,v)*a14 *a6*b38*u
               x                             x

                  4      2                      2    2
          + v *a14 *b38*u  + 4*f(v,v )*f(v,v)*a1 *a18 *b38*v
             x                      x

                                                       3       2
          + f(v,v )*f(v,v)*a1*a14*a18*a6*b38*v + f(v,v) *a1*a18 *a6*b38*v
                 x

             1        3           2                 2           2
          + ---*f(v,v) *a14*a18*a6 *b38*v + 2*f(v,v) *a1*a14*a18 *b38*u*v
             4

                  2    2                            3          2        3
          + f(v,v) *a14 *a18*a6*b38*u*v + f(v,v)*a14 *a18*b38*u *v)/(a14 *a18)