DIMACS: Series in Discrete Mathematics and Theoretical Computer Science 1991; 378 pp; hardcover Volume: 6 ISBN10: 0821865951 ISBN13: 9780821865958 List Price: US$80 Member Price: US$64 Order Code: DIMACS/6
 The first DIMACS special year, held during 19891990, was devoted to discrete and computational geometry. The workshops addressed the following topics: geometric complexity, probabilistic methods in discrete and computational geometry, polytopes and convex sets, arrangements, and algebraic and practical issues in geometric computation. This volume presents results of the workshops and the special year activities. Containing both survey articles and research papers, this collection presents an excellent overview of discrete and computational geometry. The diversity of these papers demonstrate how geometry continues to provide a vital source of ideas in theoretical computer science and discrete mathematics as well as fertile ground for interaction and stimulation between the two disciplines. Copublished with the Center for Discrete Mathematics and Theoretical Computer Science beginning with Volume 8. Volumes 17 were copublished with the Association for Computer Machinery (ACM). Table of Contents  P. K. Agarwal  Geometric partitioning and its applications
 A. Balog and I. Bárány  On the convex hull of the integer points in a disc
 M. Bern, D. Eppstein, P. Plassmann, and F. Yao  Horizon theorems for lines and polygons
 V. Capolyeas and J. Pach  On the perimeter of a point set in the plane
 H. Edelsbrunner  Lines in spaceA collection of results
 Z. Füredi, J. C. Lagarias, and F. Morgan  Singularities of minimal surfaces and networks and related extremal problems in Minkowski space
 G. Gallo and B. Mishra  WuRitt characteristic sets and their complexity
 J. Heintz, T. Recio, and M.F. Roy  Algorithms in real algebraic geometry and applications to computational geometry
 T. Hibi  Ehrhart polynomials of convex polytopes, \(h\)vectors of simplicial complexes, and nonsingular projective toric varieties
 P. Kleinschmidt, N. Schwartz, and B. Sturmfels  Unimodular fans, linear codes, and toric manifolds
 P. Kleinschmidt and Z. Smilansky  New results for simplicial spherical polytopes
 J. Lawrence  Rationalfunctionvalued valuations on polyhedra
 C. W. Lee  Winding numbers and the generalized lowerbound conjecture
 J. Matoušek  Computing the center of planar point sets
 P. McMullen and E. Schulte  Finite quotients of infinite universal polytopes
 N. Mnëv  The universality theorem on the oriented matroid stratification of the space of real matrices
 D. M. Mount  The densest doublelattice packing of a convex polygon
 P. Orlik  Arrangements in topology
 J. Pach  Notes on geometric graph theory
 J. Renegar  Recent progress on the complexity of the decision problem for the reals
 J. Snoeyink and J. Hershberger  Sweeping arrangements of curves
 H. Tverberg  On geometric permutations and the KatchalskiLewis conjecture on partial transversals for translates
 N. L. White  Invarianttheoretic computation in projective geometry
