Classification of spherical tilings by congruent quadrangles over pseudo-double wheels (I)-A special tiling by congruent concave quadrangles

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3 Citations (Scopus)

Abstract

Every simple quadrangulation of the sphere is generated by a graph called a pseudo-double wheel with two local expansions (Brinkmann et al. "Generation of simple quadrangulations of the sphere." Discrete Math., Vol. 305, No. 1-3, pp. 33-54, 2005). So, toward a classification of the spherical tilings by congruent quadrangles, we propose to classify those with the tiles being convex and the graphs being pseudo-double wheels. In this paper, we verify that a certain series of assignments of edge-lengths to pseudo-double wheels does not admit a tiling by congruent convex quadrangles. Actually, we prove the series admits only one tiling by twelve congruent concave quadrangles such that the symmetry of the tiling has only three perpendicular 2-fold rotation axes, and the tiling seems to be new.

Original languageEnglish
Pages (from-to)285-304
Number of pages20
JournalHiroshima Mathematical Journal
Volume43
Issue number3
Publication statusPublished - 2013 Nov 1

Keywords

  • Monohedral tiling
  • Pseudo-double wheel
  • Spherical quadrangle

ASJC Scopus subject areas

  • Analysis
  • Algebra and Number Theory
  • Geometry and Topology

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