Affiliation: | Centre for Differential Equations, Continuum Mechanics and Applications, School of Computational and Applied Mathematics, University of the Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa;Forsyth Chair in Mechanical Engineering, Texas A & M University, College Station, TX 77843, U.S.A.;Mathematical Institute of Charles University, Charles University, K 356 (4028), 3rd Floor, Karlin, Sokolovska 83, Praha 8, Czech Republic |