Solution 7 to problem l112o23


Expressions | Parameters | Relevance | Back to problem l112o23

Expressions

The solution is given through the following expressions:

         1     3   3        1         2   3
      - ---*a13 *a4 *b24 + ----*a13*a2 *a4 *b1
         8                  32
b42=-------------------------------------------
                          6
                        a1


         3     3   2        3         2   2
      - ---*a13 *a4 *b24 + ----*a13*a2 *a4 *b1
         4                  16
b41=-------------------------------------------
                          5
                        a1


      3     2   2        3           2
     ---*a13 *a4 *b24 + ---*a13*a2*a4 *b1
      2                  4
b40=--------------------------------------
                       4
                     a1


      3     2   2
     ---*a13 *a4 *b24
      4
b39=------------------
             4
           a1


         3     3           3        2
      - ---*a13 *a4*b24 + ---*a13*a2 *a4*b1
         2                 8
b38=----------------------------------------
                        4
                      a1


          2           3
     3*a13 *a4*b24 + ---*a13*a2*a4*b1
                      2
b37=----------------------------------
                     3
                   a1


          2
     3*a13 *a4*b24
b36=---------------
            3
          a1


      3     2           3
     ---*a13 *a4*b24 + ---*a13*a2*a4*b1
      2                 4
b35=------------------------------------
                      3
                    a1


     a13*a4*b1 - a13*a4*b24
b34=------------------------
                2
              a1


     a13*a4*b1 - a13*a4*b24
b33=------------------------
                2
              a1


      - 3*a13*a4*b24
b32=-----------------
             2
           a1


         3
      - ---*a13*a4*b24
         2
b31=-------------------
              2
            a1


           3        1        2
      - a13 *b24 + ---*a13*a2 *b1
                    4
b30=------------------------------
                   3
                 a1


          2
     3*a13 *b24
b29=------------
          2
        a1


          2        3
     3*a13 *b24 + ---*a13*a2*b1
                   2
b28=----------------------------
                  2
                a1


      - 3*a13*b24
b27=--------------
          a1


      - 3*a13*b24
b26=--------------
          a1


     a13*b1 - a13*b24
b25=------------------
            a1


      1     3   4        1         2   4
     ---*a13 *a4 *b24 - ----*a13*a2 *a4 *b1
      8                  32
b23=----------------------------------------
                        7
                      a1


      3     3   3        3         2   3
     ---*a13 *a4 *b24 - ----*a13*a2 *a4 *b1
      4                  16
b22=----------------------------------------
                        6
                      a1


         9     2   3        3           3       3     2   3
      - ---*a13 *a4 *b24 - ---*a13*a2*a4 *b1 + ----*a2 *a4 *b1
         4                  4                   16
b21=-----------------------------------------------------------
                                  5
                                a1


      3     3   2        3        2   2
     ---*a13 *a4 *b24 - ---*a13*a2 *a4 *b1
      2                  8
b20=---------------------------------------
                        5
                      a1


             2   2        3           2       3    2   2
      - 6*a13 *a4 *b24 - ---*a13*a2*a4 *b1 + ---*a2 *a4 *b1
                          2                   4
b19=--------------------------------------------------------
                                4
                              a1


         3     2   2        3           2       3     2   2
      - ---*a13 *a4 *b24 - ---*a13*a2*a4 *b1 + ----*a2 *a4 *b1
         2                  4                   16
b18=-----------------------------------------------------------
                                  4
                                a1


             2        3       2
     3*a13*a4 *b24 + ---*a2*a4 *b1
                      2
b17=-------------------------------
                    3
                  a1


              2       5        2        3       2
      - a13*a4 *b1 + ---*a13*a4 *b24 + ---*a2*a4 *b1
                      2                 4
b16=-------------------------------------------------
                             3
                           a1


              2            2        3       2
      - a13*a4 *b1 + a13*a4 *b24 + ---*a2*a4 *b1
                                    4
b15=---------------------------------------------
                           3
                         a1


        3           1        2
     a13 *a4*b24 - ---*a13*a2 *a4*b1
                    4
b14=---------------------------------
                     4
                   a1


             2           3    2
      - 3*a13 *a4*b24 + ---*a2 *a4*b1
                         4
b13=----------------------------------
                     3
                   a1


             2           3                  3    2
      - 3*a13 *a4*b24 - ---*a13*a2*a4*b1 + ---*a2 *a4*b1
                         2                  4
b12=-----------------------------------------------------
                               3
                             a1


                     3
     3*a13*a4*b24 + ---*a2*a4*b1
                     2
b11=-----------------------------
                   2
                 a1


      3
     ---*a2*a4*b1
      2
b10=--------------
           2
         a1


    3*a13*a4*b24 + 3*a2*a4*b1
b9=---------------------------
                 2
               a1


                                 3
     - a13*a4*b1 + a13*a4*b24 + ---*a2*a4*b1
                                 4
b8=------------------------------------------
                        2
                      a1


    a4*b1 - a4*b24
b7=----------------
          a1


    3*a4*b1
b6=---------
      a1


b5=0


     3    2
    ---*a2 *b1
     4
b4=------------
         2
       a1


     3
    ---*a2*b1
     2
b3=-----------
       a1


     3
    ---*a2*b1
     2
b2=-----------
       a1


      1           2
     ---*a13*a2*a4
      8
a19=----------------
            3
          a1


      1
     ---*a13*a2*a4
      2
a18=---------------
            2
          a1


     a13*a4
a17=--------
       a1


a16=0


      1
     ---*a13*a2
      2
a15=------------
         a1


a14=0


a12=0


         1           3
      - ---*a13*a2*a4
         8
a11=-------------------
              4
            a1


         1           2
      - ---*a13*a2*a4
         2
a10=-------------------
              3
            a1


             2    1       2
     - a13*a4  + ---*a2*a4
                  2
a9=-------------------------
                2
              a1


        1
     - ---*a13*a2*a4
        2
a8=------------------
            2
          a1


    a2*a4
a7=-------
     a1


                 1
     - a13*a4 + ---*a2*a4
                 2
a6=-----------------------
             a1


a5=a4


a3=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:
 b24,b1,a4,a2,a13,a1

Relevance for the application:

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

               5               3           1              3              4
df(u,t)=(u  *a1  - u *f(v,v)*a1 *a13*a4 + ---*u *f(v,v)*a1 *a2*a4 + u *a1 *a2*u
          2x        x                      2   x                     x

                       4                 4                       2       2
          + f(v ,v )*a1 *a4 + f(v,v  )*a1 *a4 - f(v,v )*f(v,v)*a1 *a13*a4
               x  x                2x                x

             1                   2      2             3
          + ---*f(v,v )*f(v,v)*a1 *a2*a4  + f(v,v )*a1 *a2*a4*u
             2       x                           x

             1        3          3    1        2             2
          - ---*f(v,v) *a13*a2*a4  - ---*f(v,v) *a1*a13*a2*a4 *u
             8                        2

             1           2            2    4
          - ---*f(v,v)*a1 *a13*a2*a4*u )/a1
             2

              3                   2             1        2          2
df(v,t)=(u *a1 *a13*v + f(v,v )*a1 *a13*a4*v + ---*f(v,v) *a13*a2*a4 *v
          x                  x                  8

             1                             1    2         2      3
          + ---*f(v,v)*a1*a13*a2*a4*u*v + ---*a1 *a13*a2*u *v)/a1
             2                             2

               7                   5                          5
df(u,s)=(u  *a1 *b1 - u  *f(v,v)*a1 *a13*a4*b1 + u  *f(v,v)*a1 *a13*a4*b24
          3x           2x                         2x

             3               5             3        6
          + ---*u  *f(v,v)*a1 *a2*a4*b1 + ---*u  *a1 *a2*b1*u
             4   2x                        2   2x

             3    2   6                        5
          + ---*u  *a1 *a2*b1 + 3*u *f(v,v )*a1 *a13*a4*b24
             2   x                 x      x

                           5             3           2   3    2   2
          + 3*u *f(v,v )*a1 *a2*a4*b1 - ---*u *f(v,v) *a1 *a13 *a4 *b24
               x      x                  2   x

             3           2   3          2       3            2   3   2   2
          - ---*u *f(v,v) *a1 *a13*a2*a4 *b1 + ----*u *f(v,v) *a1 *a2 *a4 *b1
             4   x                              16   x

                          4    2             3              4
          - 3*u *f(v,v)*a1 *a13 *a4*b24*u - ---*u *f(v,v)*a1 *a13*a2*a4*b1*u
               x                             2   x

             3              4   2            3       5   2     2
          + ---*u *f(v,v)*a1 *a2 *a4*b1*u + ---*u *a1 *a2 *b1*u
             4   x                           4   x

                          6                           4       2
          + 3*f(v ,v  )*a1 *a4*b1 - f(v ,v )*f(v,v)*a1 *a13*a4 *b1
                 x  2x                 x  x

                              4       2        3                    4      2
          + f(v ,v )*f(v,v)*a1 *a13*a4 *b24 + ---*f(v ,v )*f(v,v)*a1 *a2*a4 *b1
               x  x                            4     x  x

             3             5                         6
          + ---*f(v ,v )*a1 *a2*a4*b1*u + f(v,v  )*a1 *a4*b1
             2     x  x                        3x

                       6                            4       2
          - f(v,v  )*a1 *a4*b24 - f(v,v  )*f(v,v)*a1 *a13*a4 *b1
                 3x                    2x

             5                    4       2
          + ---*f(v,v  )*f(v,v)*a1 *a13*a4 *b24
             2       2x

             3                    4      2                   5
          + ---*f(v,v  )*f(v,v)*a1 *a2*a4 *b1 + 3*f(v,v  )*a1 *a13*a4*b24*u
             4       2x                                2x

             3             5                       2   4       2
          + ---*f(v,v  )*a1 *a2*a4*b1*u + 3*f(v,v ) *a1 *a13*a4 *b24
             2       2x                          x

             3         2   4      2       9                2   2    2   3
          + ---*f(v,v ) *a1 *a2*a4 *b1 - ---*f(v,v )*f(v,v) *a1 *a13 *a4 *b24
             2       x                    4       x

             3                2   2          3
          - ---*f(v,v )*f(v,v) *a1 *a13*a2*a4 *b1
             4       x

             3                 2   2   2   3
          + ----*f(v,v )*f(v,v) *a1 *a2 *a4 *b1
             16       x

                               3    2   2
          - 6*f(v,v )*f(v,v)*a1 *a13 *a4 *b24*u
                   x

             3                   3          2
          - ---*f(v,v )*f(v,v)*a1 *a13*a2*a4 *b1*u
             2       x

             3                   3   2   2                    4    2         2
          + ---*f(v,v )*f(v,v)*a1 *a2 *a4 *b1*u - 3*f(v,v )*a1 *a13 *a4*b24*u
             4       x                                   x

             3            4   2        2    1        4    3   4
          + ---*f(v,v )*a1 *a2 *a4*b1*u  + ---*f(v,v) *a13 *a4 *b24
             4       x                      8

             1         4       2   4       3        3       3   3
          - ----*f(v,v) *a13*a2 *a4 *b1 + ---*f(v,v) *a1*a13 *a4 *b24*u
             32                            4

             3         3          2   3         3        2   2    3   2      2
          - ----*f(v,v) *a1*a13*a2 *a4 *b1*u + ---*f(v,v) *a1 *a13 *a4 *b24*u
             16                                 2

             3        2   2       2   2     2            3    3         3
          - ---*f(v,v) *a1 *a13*a2 *a4 *b1*u  + f(v,v)*a1 *a13 *a4*b24*u
             8

             1           3       2        3    7
          - ---*f(v,v)*a1 *a13*a2 *a4*b1*u )/a1
             4

               5                  5                       5
df(v,s)=(u  *a1 *a13*b1*v - u  *a1 *a13*b24*v - 3*u *v *a1 *a13*b24
          2x                 2x                    x  x

             3              3    2             3              3
          + ---*u *f(v,v)*a1 *a13 *a4*b24*v + ---*u *f(v,v)*a1 *a13*a2*a4*b1*v
             2   x                             4   x

                   4    2            3       4                       6
          + 3*u *a1 *a13 *b24*u*v + ---*u *a1 *a13*a2*b1*u*v + v  *a1 *b24
               x                     2   x                      3x

             3               4                      5
          - ---*v  *f(v,v)*a1 *a13*a4*b24 - 3*v  *a1 *a13*b24*u
             2   2x                            2x

                           4               3           2   2    2   2
          - 3*v *f(v,v )*a1 *a13*a4*b24 + ---*v *f(v,v) *a1 *a13 *a4 *b24
               x      x                    4   x

                          3    2                   4    2      2
          + 3*v *f(v,v)*a1 *a13 *a4*b24*u + 3*v *a1 *a13 *b24*u
               x                               x

                       4                          4
          + f(v ,v )*a1 *a13*a4*b1*v - f(v ,v )*a1 *a13*a4*b24*v
               x  x                       x  x

                       4                          4
          + f(v,v  )*a1 *a13*a4*b1*v - f(v,v  )*a1 *a13*a4*b24*v
                 2x                         2x

             3                   2    2   2
          + ---*f(v,v )*f(v,v)*a1 *a13 *a4 *b24*v
             2       x

             3                   2          2
          + ---*f(v,v )*f(v,v)*a1 *a13*a2*a4 *b1*v
             4       x

                        3    2               3            3
          + 3*f(v,v )*a1 *a13 *a4*b24*u*v + ---*f(v,v )*a1 *a13*a2*a4*b1*u*v
                   x                         2       x

             1        3    3   3          1         3       2   3
          - ---*f(v,v) *a13 *a4 *b24*v + ----*f(v,v) *a13*a2 *a4 *b1*v
             8                            32

             3        2       3   2            3         2          2   2
          - ---*f(v,v) *a1*a13 *a4 *b24*u*v + ----*f(v,v) *a1*a13*a2 *a4 *b1*u*v
             4                                 16

             3           2    3         2      3           2       2        2
          - ---*f(v,v)*a1 *a13 *a4*b24*u *v + ---*f(v,v)*a1 *a13*a2 *a4*b1*u *v
             2                                 8

              3    3      3      1    3       2     3      6
          - a1 *a13 *b24*u *v + ---*a1 *a13*a2 *b1*u *v)/a1
                                 4