English

Some New Equiprojective Polyhedra

Computational Geometry 2010-09-14 v1 Discrete Mathematics

Abstract

A convex polyhedron PP is kk-equiprojective if all of its orthogonal projections, i.e., shadows, except those parallel to the faces of PP are kk-gon for some fixed value of kk. Since 1968, it is an open problem to construct all equiprojective polyhedra. Recently, Hasan and Lubiw [CGTA 40(2):148-155, 2008] have given a characterization of equiprojective polyhedra. Based on their characterization, in this paper we discover some new equiprojective polyhedra by cutting and gluing existing polyhedra.

Keywords

Cite

@article{arxiv.1009.2252,
  title  = {Some New Equiprojective Polyhedra},
  author = {Masud Hasan and Mohammad Monoar Hossain and Alejandro López-Ortiz and Sabrina Nusrat and Saad Altaful Quader and Nabila Rahman},
  journal= {arXiv preprint arXiv:1009.2252},
  year   = {2010}
}

Comments

10 pages, 8 figures

R2 v1 2026-06-21T16:12:51.442Z