Persistent Patterns in Integer Discrete Circles - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Conference Papers Year : 2013

Persistent Patterns in Integer Discrete Circles

André Hoarau
  • Function : Author
  • PersonId : 938766
Thierry Monteil
  • Function : Author
  • PersonId : 938552


We study patterns that appear in discrete circles with integer center and radius. As the radius goes to infinity, the patterns get closer to digital straight segments: the notion of tangent words (described in Monteil DGCI 2011) allows to grasp their shape. Unexpectedly, some tangent convex words do not appear infinitely often due to deep arithmetical reasons related to an underlying Pell-Fermat equation. The aim of this paper is to provide a complete characterization of the patterns that appear in integer discrete circles for infinitely many radii.
No file

Dates and versions

lirmm-00799373 , version 1 (12-03-2013)


  • HAL Id : lirmm-00799373 , version 1


André Hoarau, Thierry Monteil. Persistent Patterns in Integer Discrete Circles. DGCI: Discrete Geometry for Computer Imagery, Mar 2013, Séville, Spain. pp.35-46. ⟨lirmm-00799373⟩
152 View
0 Download


Gmail Mastodon Facebook X LinkedIn More