A Note on the Fundamental Identity of Sequential Analysis

Two Dimensional Representation of the Dirac Equation in Non-Associative Algebra

“…With the help of Albert theorem [13], it is found that the only algebras over the reals, admitting a modulus function with Adler properties, are the reals R, the complex numbers C, the quaternions or Hamilton numbers H and the octonions or Cayley numbers O.…”