CONTENTS
R. Glassey and W. Strauss, Perturbation of essential spectra of evolution operators and the Vlasov--Poisson--Boltzmann system; 457
Han Yang, A singular perturbed problem for semilinear wave equations with small parameter; 473
Shujie Li and Zhitao Zhang , Multiple solutions theorems for semilinear elliptic boundary value problems with resonance at infinity; 489
Wac{\l}aw Marzantowicz and Piotr Maciej Przygodzki, Finding periodic points of a map by use of a $K\text{-adic}$ expansion; 495
Francisco Balibrea and Jos\'{e} Valero, On dimension of attractors of differential inclusions and reaction--diffussion equations; 515
Mark Pollicott, Closed orbits and homology for $C^{2}$-flows; 529
Guizhen Cui, Yunping Jiang and Anthony Quas, Scaling functions, Gibbs measures, and Teichm\"uller spaces of circle endomorphisms; 535
Maria Michaela Porzio, Existence of solutions for some ``noncoercive''parabolic equations; 553
F. Alessio, C. Carminati, and P. Montecchiari , Heteroclinic motions joining almost periodic solutions for a class of Lagrangian systems; 569
Irena Lasiecka and Roberto Triggiani, A sharp trace result on a thermo-elastic plate equation with coupled hinged/Neumann boundary conditions; 585
M. Carbinatto and K. Mischaikow , Horseshoes and the Conley index spectrum -II: the theorem is sharp; 599
Marian Gidea, Leray functor and orbital Conley index for non-invariant sets; 617
Guangrong Wu and Ping Zhang , The zero diffusion limit of 2-d Navier-Stokes equations with $l^1$ initial vorticity; 631
Gabriel P. Paternain, On two noteworthy deformations of negatively curved Riemannian metrics; 639
Tijun Xiao and Jin Liang, Pazy-type characterization for differentiability of propagators of higher order Cauchy problems in Banach spaces; 651
A. Rhandi and R. Schnaubelt, Asymptotic behaviour of a non-autonomous population equation with diffusion in $L^1$; 663
N. Hayashi, P.I. Naumkin and P-N. Pipolo, Smoothing effects for some derivative nonlinear Schr\"odinger equations; 685