CONTENTS
Arek Goetz, Dynamics of a piecewise rotation 593
Peng Zhang, Jiequan Li and Tong Zhang, On two-dimensional Riemann problem for pressure-gradient equations of the Euler system 609
Pedro Freitas, The linear damped wave equation, Hamiltonian symmetry, and the importance of being odd 635
Maciej Smolka, Asymptotic behaviour of optimal solutions of control problems governed by inclusions 641
Andrew E.B. Lim and John B. Moore, A path following algorithm for infinite quadratic programming on a Hilbert space 653
Thierry Colin and Pierre Fabrie, Semidiscretization in time for nonlinear Schr\"odinger-waves equations 671
Matthias B\"uger, Torsion numbers, a tool for the examination of symmetric reaction-diffusion systems related to oscillation numbers 691
Anna Maria Micheletti and Angela Pistoia, Multiple eigenvalues of the Laplace-Beltrami operator and deformation of the Riemannian metric 709
Bopeng Rao, Optimal energy decay rate in a damped Rayleigh beam 721
Horst R. Thieme, Positive perturbation of operator semigroups: Growth bounds, essential compactness, and asynchronous exponential growth 735
Maria Carvalho, First homoclinic tangencies in the boundary of Anosov diffeomorphisms 765
Guo Boling and Dai Zhengde, Attractor for the dissipative Hamiltonian amplitude equation governing modulated wave instabilities 783
Author Index to Volume IV 795
Contents of Volume IV 797