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A conformal group approach to the Dirac-K\"ahler system on the lattice

Mathematical Physics 2017-08-17 v3 Complex Variables math.MP

Abstract

Starting from the representation of the (n1)+n(n-1)+n-dimensional Lorentz pseudo-sphere on the projective space PRn,n\mathbb{P}\mathbb{R}^{n,n}, we propose a method to derive a class of solutions underlying to a Dirac-K\"ahler type equation on the lattice. We make use of the Cayley transform φ(w)=1+w1w\varphi({\bf w})=\dfrac{1+{\bf w}}{1-{\bf w}} to show that the resulting group representation arise from the same mathematical framework as the conformal group representation in terms of the {\it general linear group} GL(2,Γ(n1,n1){0})GL\left(2,\Gamma(n-1,n-1)\cup\{ 0\}\right). That allows us to describe such class of solutions as a commutative nn-ary product, involving the quasi-monomials φ(zj)xjh\varphi\left({\bf z}_j\right)^{-\frac{x_j}{h}} (xjhZx_j \in h\mathbb{Z}) with membership in the paravector space RRejen+j\mathbb{R}\oplus \mathbb{R}{\bf e}_j{\bf e}_{n+j}.

Keywords

Cite

@article{arxiv.1602.02252,
  title  = {A conformal group approach to the Dirac-K\"ahler system on the lattice},
  author = {Nelson Faustino},
  journal= {arXiv preprint arXiv:1602.02252},
  year   = {2017}
}

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14 pages