RENDICONTI DEL SEMINARIO MATEMATICO

PrefaceOn September 19-21, 2005, the Department of Mathematics of the University ofTurin guested a “WORKSHOP ON DYNAMICS”. We invited six among the speakersto write a survey for this special issue of the Journal. Song Jiang, Huseyin Koçak,Jean Mawhin, James Yorke and Fabio Zanolin wrote a paper with coauthors, moreoverMatteo Franca’s survey is based on the seminar delivered by Russell Johnson at theWorkshop.Some of the articles present new results in a more general framework, so theyalso have the character of a survey even if they are research papers.The following topics in Dynamics are studied: Explosion in dimensions 1–3,Periodic solutions of difference equations, Compressible viscous flows, A Dynamicalapproach to the p-Laplace equation, Shadowing in ODEs, Periodic points and chaosfor nonlinear Hill equations.We are grateful to the authors and to all the other speakers of the Workshop fortheir enthusiastic participation.Hisao Fujita Yashima, Gaetano Zampieri