need second opinion

Michael Somos somos at
Wed May 5 19:52:32 CEST 1999

I believe that it was proven by Jacobi using theta functions that every
positive integer is the sum of four squares. That is the reason for the
appearance of n^2+1 for four dimensions. Any dimension greater than four
would give the same result. The results for less than four are not so
simple. Shalom, Michael

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