Solution 18 to problem l21o35


Expressions | Parameters | Relevance | Back to problem l21o35

Expressions

The solution is given through the following expressions:

b40=0


      3    2
     ---*a7 *b1
      8
b39=------------
          2
        a4


b38=0


      3       2
     ---*a1*a7 *b1
      2
b37=---------------
            3
          a4


b36=0


b35=0


b34=0


     a7*b1
b33=-------
      a4


      1              1
     ---*a3*a7*b1 - ---*a4*a7*b1
      2              2
b32=-----------------------------
                   2
                 a4


b31=0


b30=0


      3    2   2
     ---*a1 *a7 *b1
      2
b29=----------------
            4
          a4


b28=0


b27=0


b26=0


     a1*a7*b1
b25=----------
         2
       a4


b24=0


b23=0


      3    2
     ---*a7 *b1
      2
b22=------------
       a1*a4


         2
     6*a7 *b1
b21=----------
         2
       a4


      15    2
     ----*a7 *b1
      8
b20=-------------
           2
         a4


     9*a7*b1
b19=---------
       a1


      5
     ---*a7*b1
      2
b18=-----------
        a1


     a3*a7*b1 + 6*a4*a7*b1
b17=-----------------------
             a1*a4


      3
     ---*a3*a7*b1 + 3*a4*a7*b1
      2
b16=---------------------------
               a1*a4


            2
     6*a1*a7 *b1
b15=-------------
           3
         a4


      15       2
     ----*a1*a7 *b1
      2
b14=----------------
            3
          a4


     5*a7*b1
b13=---------
       a4


     3*a3*a7*b1 + 6*a4*a7*b1
b12=-------------------------
                 2
               a4


     10*a7*b1
b11=----------
        a4


      3              11
     ---*a3*a7*b1 + ----*a4*a7*b1
      2              2
b10=------------------------------
                   2
                 a4


    9*a7*b1
b9=---------
      a4


     5
    ---*a7*b1
     2
b8=-----------
       a4


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


    a3*b1 + 2*a4*b1
b6=-----------------
          a1


    3*a3*b1 + a4*b1
b5=-----------------
          a1


     15    2   2
    ----*a1 *a7 *b1
     2
b4=-----------------
            4
          a4


    10*a1*a7*b1
b3=-------------
          2
        a4


    5*a1*a7*b1
b2=------------
         2
       a4


a12=0


      1
     ---*a1*a7
      2
a11=-----------
        a4


       2
     a1 *a7
a10=--------
        2
      a4


a9=0


a8=0


    2*a1*a7
a6=---------
      a4


     3
    ---*a1*a7
     2
a5=-----------
       a4


        2
    3*a1 *a7
a2=----------
        2
      a4


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:
 b1,a3,a7,a4,a1

Relevance for the application:

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

                  2    3                              2                       2
df(u,t)=(u  *a1*a4  + ---*u *f(v,v)*a1*a4*a7 + 3*u *a1 *a7*u + f(v ,v  )*a3*a4
          3x           2   x                      x               x  2x

                       3                    2                              2
          + f(v,v  )*a4  + f(v,v )*f(v,v)*a4 *a7 + 2*f(v,v )*a1*a4*a7*u)/a4
                 3x             x                         x

          1                            2
         ---*v *f(v,v)*a1*a4*a7 + v *a1 *a7*u
          2   x                    x
df(v,t)=--------------------------------------
                           2
                         a4

                  4       5                  3                 2   2
df(u,s)=(u  *a1*a4 *b1 + ---*u  *f(v,v)*a1*a4 *a7*b1 + 5*u  *a1 *a4 *a7*b1*u
          5x              2   3x                          3x

                        2   2                            3
          + 10*u  *u *a1 *a4 *a7*b1 + 9*u  *f(v,v )*a1*a4 *a7*b1
                2x  x                    2x      x

             3                      2          11                   3
          + ---*u *f(v ,v )*a1*a3*a4 *a7*b1 + ----*u *f(v ,v )*a1*a4 *a7*b1
             2   x    x  x                     2    x    x  x

                                3          15           2      2   2
          + 10*u *f(v,v  )*a1*a4 *a7*b1 + ----*u *f(v,v) *a1*a4 *a7 *b1
                x      2x                  8    x

             15              2      2         15       3   2     2
          + ----*u *f(v,v)*a1 *a4*a7 *b1*u + ----*u *a1 *a7 *b1*u
             2    x                           2    x

                              4                   5                     4
          + 3*f(v  ,v  )*a3*a4 *b1 + f(v  ,v  )*a4 *b1 + f(v ,v  )*a3*a4 *b1
                 2x  3x                 2x  3x              x  4x

                          5       3                        3
          + 2*f(v ,v  )*a4 *b1 + ---*f(v ,v  )*f(v,v)*a3*a4 *a7*b1
                 x  4x            2     x  2x

                                 4                             2
          + 3*f(v ,v  )*f(v,v)*a4 *a7*b1 + 3*f(v ,v  )*a1*a3*a4 *a7*b1*u
                 x  2x                          x  2x

                             3                                 3
          + 6*f(v ,v  )*a1*a4 *a7*b1*u + f(v ,v )*f(v,v )*a3*a4 *a7*b1
                 x  2x                      x  x       x

                                 4                    5
          + 6*f(v ,v )*f(v,v )*a4 *a7*b1 + f(v,v  )*a4 *b1
                 x  x       x                   5x

             5                    4                         3
          + ---*f(v,v  )*f(v,v)*a4 *a7*b1 + 5*f(v,v  )*a1*a4 *a7*b1*u
             2       3x                            3x

                                 4          3                2   3   2
          + 9*f(v,v  )*f(v,v )*a4 *a7*b1 + ---*f(v,v )*f(v,v) *a4 *a7 *b1
                   2x       x               2       x

                                  2   2                    2      2     2
          + 6*f(v,v )*f(v,v)*a1*a4 *a7 *b1*u + 6*f(v,v )*a1 *a4*a7 *b1*u )/(a1
                   x                                  x

      4
   *a4 )

                     2          1                   2
df(v,s)=(u  *v *a1*a4 *a7*b1 + ---*v *f(v ,v )*a3*a4 *a7*b1
          2x  x                 2   x    x  x

             1                3                       3
          - ---*v *f(v ,v )*a4 *a7*b1 + v *f(v,v  )*a4 *a7*b1
             2   x    x  x               x      2x

             3           2   2   2       3                    2
          + ---*v *f(v,v) *a4 *a7 *b1 + ---*v *f(v,v)*a1*a4*a7 *b1*u
             8   x                       2   x

             3       2   2     2    4
          + ---*v *a1 *a7 *b1*u )/a4
             2   x