Inserted: 8 feb 2005
Journal: Proc. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci.
The existence of infinitely many nontrivial radially symmetric solitary waves for the nonlinear Klein-Gordon equation, coupled with a Born-Infeld type equation, is established under general assumptions.
Keywords: $Z_2$--Mountain Pass, $L^\infty$-- a priori estimate