2002/06/17 by Wilhelm I. Fushchych
Physics and Astronomy · Mathematics · #quant-ph #math-ph #math.MP #nlin.SI
published as Lettere al Nuovo Cimento, 1972, V. 4, N 9, P. 344-346 · 3 pages
arxiv created 2002/06/17 · arxiv updated 2009/11/30
In previous papers quant-ph/0206077, quant-ph/0206078, quant-ph/0206079 we have shown that there exist three types of the relativistic equations for the massless particles. Here we show that for the free particles and antiparticles with the mass m>0 and the arbitrary spin s ≥ 1/2 there also exist three types of nonequivalent equations.