Dynamic Response of an Elastic Half Space with Cylindrical Cavity to Time-Dependent Surface Tractions Over the Boundary of the Cavity V. ThiruvenkatacharK. Viswanathan Indiana University Mathematics Journal 1965 text pdf 10.1512/iumj.1965.14.14037 10.1512/iumj.1965.14.14037 en Indiana Univ. Math. J. 14 (1965) 541 - 571 state-of-the-art mathematics http://iumj.org/access/