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28 March 2024
 
  » arxiv » math.CV/0008122

 Article overview


Complex numbers in 5 dimensions
Silviu Olariu ;
Date 16 Aug 2000
Subject Complex Variables MSC-class: 30G35 (Primary) 32A45, 33E20, 46F15, 58J15 (Secondary) | math.CV
AffiliationNational Institute of Physics and Nuclear Engineering, Tandem Laboratory, Magurele, Bucharest, Romania
AbstractA system of commutative complex numbers in 5 dimensions of the form u=x_0+h_1x_1+h_2x_2+h_3x_3+h_4x_4 is described in this paper, the variables x_0, x_1, x_2, x_3, x_4 being real numbers. The operations of addition and multiplication of the 5-complex numbers introduced in this work have a geometric interpretation based on the the modulus d, the amplitude ho, the polar angle heta_+, the planar angle psi_1, and the azimuthal angles phi_1,phi_2. The exponential function of a 5-complex number can be expanded in terms of polar 5-dimensional cosexponential functions g_{5k}(y), k=0,1,2,3,4, and the expressions of these functions are obtained from the properties of the exponential function of a 5-complex variable. Exponential and trigonometric forms are obtained for the 5-complex numbers, which depend on the modulus, the amplitude and the angular variables. The 5-complex functions defined by series of powers are analytic, and the partial derivatives of the components of the 5-complex functions are closely related. The integrals of 5-complex functions are independent of path in regions where the functions are regular. The fact that the exponential form of the 5-complex numbers depends on the cyclic variables phi_1, phi_2 leads to the concept of pole and residue for integrals on closed paths. The polynomials of 5-complex variables can be written as products of linear or quadratic factors.
Source arXiv, math.CV/0008122
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