Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-09-20
Annals Phys. 297 (2002) 295-314
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX file, 23 pages
Scientific paper
Discrete versions of the Yang-Mills and Einstein actions are proposed for any finite group. These actions are invariant respectively under local gauge transformations, and under the analogues of Lorentz and general coordinate transformations. The case Z_n \times Z_n \times...\times Z_n is treated in some detail, recovering the Wilson action for Yang-Mills theories, and a new discretized action for gravity.
Castellani Leonardo
Pagani Chiara
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