The Last Fermat theorem

The following paragraphs contain a short outlook on the Last Fermat theorem with regards to G-systems.







Instances in segments

Let c(s) be a number of instances in segment s. In case a^p +b^p =c^p (i.e. the Last Fermat theorem) it should hold:

         c-1
 (1)     ∑(c(s)) = a^p
         s=b

For example in G(p) the values c(s) are:

p=2: 1, 3, 5, 7, 9, 11 13, 15, 17, 19, 21, 23, 25, 27 ..
p=3: 1, 7, 19, 37, 61, 91, 127, 169, 217, 271, ...
p=5: 1, 31, 211, 781, 2101, 4651, ...
p=7: 1, 127, 2059, 14197, ...

Only in case p=2 such sums are known:
7+ 9 = 4^2; 17+19 = 6^2; 11+13+15+17+19+21+23+25 = 12^2.

In case p=3, i.e. G(3) the values c(s) are:

  |   0   1   2   3   4  ...  i
--+----------------------------
0 |   0
1 |   1,  7, 19, 37, 61, 91
2 |   8, 26, 56, 98,152,
3 |  27, 63,117,189,
4 |  64,124,208,
5 | 125,
6 |
j

In the table it holds:

 (2a)   R[i,j]=R[i,1]+R[i+1,j-1]
 E.g. R[3,3]=R[3,1]+R[4,2]=19+98=117 

Written in an other way:

 (2b)   R[i,j]=R[i-1,j+1]-R[i-1,1]
 E.g. R[4,2]=R[3,3]-R[3,1]=117-19=98 

Congruences

The equation (1) must hold also for every module m:

c(s)
        mod2 mod3 mod4 mod5 mod6 mod7 mod8 mod9 mod10 mod11 mod12
-----------------------------------------------------------------
   1    1    1    1    1    1    1    1    1    1     1     1
   7    1    1   -1    2    1    0   -1   -2   -3    -4    -5
  19    1    1   -1   -1    1   -2    3    1   -1    -3    -5
  37    1    1    1    2    1    2   -3    1   -3     4     1
  61    1    1    1    1    1   -2   -3   -2    1    -5     1
  91    1    1   -1    1    1    0    3    1    1     3    -5
 127    1    1   -1    2    1    1   -1    1   -3    -5    -5
 169    1    1    1   -1    1    1    1   -2   -1     4     1
 217    1    1    1    2    1    0    1    1   -3    -3     1
 271    1    1   -1    1    1   -2   -1    1    1    -4    -5
 331    1    1   -1    1    1    2    3   -2    1     1    -5
 397    1    1    1    2    1   -2   -3    1   -3     1     1
 469    1    1    1   -1    1    0   -3    1   -1    -4     1
 547    1    1   -1    2    1    1    3   -2   -3    -3    -5

a^p
       mod2 mod3 mod4 mod5 mod6 mod7 mod8 mod9 mod10 mod11 mod12
-----------------------------------------------------------------
   1    1    1    1    1    1    1    1    1    1     1     1
   8    0   -1    0   -2    2    1    0   -1   -2    -3    -4
  27    1    0   -1    2    3   -1    3    0   -3     5     3
  64    0    1    0   -1   -2    1    0    1    4    -2     4
 125    1   -1    1    0   -1   -1   -3   -1    5     4     5
 216    0    0    0    1    0   -1    0    0   -4    -4     0
 343    1    1   -1   -2    1    0   -1    1    3     2    -5
 512    0   -1    0    2    2    1    0   -1    2    -5    -4
 729    1    0    1   -1    3    1    1    0   -1     3    -3
1000    0    1    0    0   -2   -1    0    1    0    -1     4
1331    1   -1   -1    1   -1    1    3   -1    1     0    -1
1728    0    0    0   -2    0   -1    0    0   -2     1     0
2197    1    1    1    2    1   -1   -3    1   -3    -3     1
2744    0   -1    0   -1    0    0    0   -1    4     5    -4

Therefore, sum of numbers in a block of some adjacent rows from the first table should be equal to the numbers of one row from the second table (for each column).


Some small dependencies

From the expression (b+p)^p-b^p = 0 (mod p) and from the structure of diferential progressions of self-classes follows:

	 s[(b+p)^p-(b+p)]/p - (b^p-b)/p = -1 (mod p )
     (b+p)^p - b^p = 0 ( mod p^2 ).

E.g. (2+3)^3 - 2^3 = 117 = 0 mod 3^2; or (2+5)^5 - 2^5 = 16775 = 0 mod 5^2.

For each p ε P the numbers c(s) satisfy the equation:

    a(0) + a(p)  = constant ( mod p ).

E.g. p=3: 1 + 37 = 7 + 61 = 19 + 91 = 37 + 127 = 2 mod 3.


More general problem

Let us search all sequences r= {r(i)} having members r(a),r(b),r(c), that it holds: r(a)+r(b)=r(c).
Fermat theorem only reduces domain of sequences to r(n)= n^k (k is a constant).

Differential sequences


G-systems

Schematic algebra