It is shown that for a wide class of nonlinear wave equations there exist no stable time‐independent solutions of finite energy. The possibility is considered whether elementary particles might be osc...
G. Gray, Y. Li, D. Murray-Smith, and K. Sharman. Technical Report, CSC-96003. Department of Electronics and Electrical Engineering,
University of Glasgow, Glasgow, G12 8QQ, U.K., (13 June 1996)