Abstract.
Using the bicomplex numbers
which is a commutative ring with zero divisors defined by
where i 2 1 = − 1, i 2 2 = − 1, j2 = 1 and i 1 i 2 = j = i 2 i 1 , we construct hyperbolic and bicomplex Hilbert spaces. Linear functionals and dual spaces are considered on these spaces and properties of linear operators are obtained; in particular it is established that the eigenvalues of a bicomplex self-adjoint operator are in the set of hyperbolic numbers.
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Rochon, D., Tremblay, S. Bicomplex Quantum Mechanics: II. The Hilbert Space. AACA 16, 135–157 (2006). https://doi.org/10.1007/s00006-006-0008-5
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DOI: https://doi.org/10.1007/s00006-006-0008-5