Disappearing Solutions for the Dissipative Wave Equation Andrew Majda Indiana University Mathematics Journal 1975 text pdf 10.1512/iumj.1975.24.24093 10.1512/iumj.1975.24.24093 en Indiana Univ. Math. J. 24 (1975) 1119 - 1133 state-of-the-art mathematics http://iumj.org/access/