Paper by Erik D. Demaine

David Charlton, Erik D. Demaine, Martin L. Demaine, Vida Dujmović, Pat Morin, and Ryuhei Uehara, “Ghost Chimneys”, International Journal of Computational Geometry and Applications, volume 22, number 3, June 2012, pages 207–214.

A planar point set S is an (it) set of ghost chimneys if there exist lines H0, H1, …, Ht−1 such that the orthogonal projection of S onto Hj consists of exactly i + j distinct points. We give upper and lower bounds on the maximum value of t in an (it) set of ghost chimneys, showing that it is linear in i.

This paper is also available from World Scientific.

The paper is 5 pages.

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Related papers:
GhostChimneys_CCCG2010 (Ghost Chimneys)

See also other papers by Erik Demaine.
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Last updated March 27, 2017 by Erik Demaine.