Virial identities and energy-momentum relation for solitary waves of nonlinear Dirac equations
Solitary waves of nonlinear Dirac, Maxwell-Dirac and Klein-Gordon-Dirac equations are considered.
We deduce some virial identities and check that the energy-momentum relation for solitary waves coincides with the Einstein energy-momentum relation for point particles.
nonlinear Dirac equation, Maxwell-Dirac and Klein-Gordon-Dirac equations, solitary waves, Einstein energy-momentum relation
Mathematical problems and theory of numerical methods