1998/11/23 by N. G. Marchuk
Physics and Astronomy · Mathematics · #math-ph #math.MP #math.QA #msc:35Q40
published as Nuovo Cim. B113 (1998) 1287-1295 · 9 pages, Latex
arxiv created 1998/11/23 · arxiv updated 2009/11/30
We introduce an equation named matrix Dirac equation which can be considered as a generalization of Dirac equation for an electron. The liaison between matrix Dirac equation and standard Dirac equation is discussed. We write a lagrangian from which matrix Dirac equation can be derived. This lagrangian is invariant under global unitary transformations of variables. The requirement of a local (gauge) invariance of lagrangian leads us to lagrangian with gauge fields.