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Observables de partículas relativistas Garrido, L. (Luis), 1930-2009 Sesma Bienzobas, Javier Partícules (Física nuclear) Equació de Dirac Particles (Nuclear physics) Dirac equation We study the most general unitary transformation that transform the Hamiltonians of particles of spins 0, 1/2 or 1, into Hamiltonians containing even or odd matrices only. We present also the expressions for the position operators for each transformation that are valid for the three kinds of particles mentioned above. 2011-03-08T09:50:06Z 2011-03-08T09:50:06Z 1962 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0010-0757 https://hdl.handle.net/2445/16965 12476 spa Reproducció del document publicat a Reproducció del document publicat a http://www.collectanea.ub.edu/index.php/Collectanea/article/view/3276/3958 Collectanea Mathematica, 1962, vol. 14, núm. 3, p. 279-286 (c) Universitat de Barcelona, 1962 info:eu-repo/semantics/openAccess 8 p. application/pdf Universitat de Barcelona Articles publicats en revistes (Física de la Matèria Condensada)