Self-forces in the Spacetime of Multiple Cosmic Strings
  We calculate the electromagnetic self-force on a stationary linear distribution of four-current in the spacetime of multiple cosmic strings. It is shown that if the current is infinitely thin and stretched along a line which is parallel to the strings the problem admits an explicit solution. 
E. R. Bezerra de Mello, V. B. Bezerra and Yu. V. Grats