Acknowledgments

The first author is much indebted to H. B. Keller of the California Institute of Technology for his inspiration, encouragement and support. He is also thankful to AUTO users and research collaborators who have directly or indirectly contributed to its development, in particular, Jean Pierre Kernévez, UTC, Compiègne, France; Don Aronson, University of Minnesota, Minneapolis; and Hans Othmer, University of Utah. Some material in this document related to the computation of connecting orbits was developed with Mark Friedman, University of Alabama, Huntsville. Also acknowledged is the work of Nguyen Thanh Long, Concordia University, Montreal, on the graphics program PLAUT. Special thanks are due to Sheila Shull, California Institute of Technology, for her cheerful assistance in the distribution of AUTO over a long period of time. Over the years, the development of AUTO has been supported by various agencies through the California Institute of Technology, and by research grants from NSERC (Canada).

The development of HomCont has benefitted from help and advice from, among others, W.-J. Beyn, Universität Bielefeld, M. J. Friedman, University of Alabama, A. Rucklidge, University of Cambridge, M. Koper, University of Utrecht, C. J. Budd, University of Bath, Fabio Dercole, Politecnico di Milano, and Frank Schilder, University of Surrey, Financial support for this collaboration was also received from the U.K. Engineering and Physical Science Research Council and the Nuffield Foundation.