On the number of separable partitions

  • Authors:
  • Frank K. Hwang;Uriel G. Rothblum

  • Affiliations:
  • -;Faculty of Industrial Engineering and Management, Technion-Israel Institute of Technology, Haifa, Israel 32000

  • Venue:
  • Journal of Combinatorial Optimization
  • Year:
  • 2011

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Abstract

Consider partitions of a given set A of n distinct points in general position in 驴 d into parts where each pair of parts can be separated by a hyperplane that contains a given set of points E. We consider the problem of counting and generating all such partitions (correcting a classic 1967 result of Harding about the number of such partitions into two parts). Applications of the result to partition problems are presented.