It is with great pleasure that we publish this collection of papers dedicated to
Professor Wlodzimierz Kuperberg commemorating the occasion of his
sixtieth birthday, January 19, 2001. All included papers were received in the
second half of 2001 and contain new results.
The principal theme of this volume is intuitive geometry. This book covers
packing and covering theory, tilings, combinatorial geometry, convexity, and
computational geometry. These topics belong to subjects on which Professor
Kuperberg has made strong impacts and is continuing to make many deep
contributions.
A special feature of the volume is a problem collection, which is an extended
version of the set of problems accumulated at the Discrete Geometry
Special Session, organized by Andras Bezdek, and held at the Annual Joint
Mathematics Meetings in New Orleans.
I would like to express my gratitude to the authors for contributing to this
anniversary volume and to the many referees who gave their valuable time to
read the manuscripts. I also thank Professor Krystyna Kuperberg, who provided
several of the biographical details for the introductory paper.