Volume 55 (2023)
Volume 54 (2022)
Volume 53 (2021)
Volume 52 (2020)
Volume 51 (2019)
Volume 50 (2018)
Volume 49 (2017)
Volume 48 (2016)
Volume 47 (2016)
Volume 46 (2015)
Volume 45 (2014)
Volume 44 (2013)
Volume 43 (2009)
Volume 42 (2008)
Volume 41 (2007)
Plane Bounded-Degree Spanners Among the Obstacles for the Points in Convex Position
Articles in Press, Accepted Manuscript, Available Online from 15 January 2022

https://doi.org/10.22059/jac.2022.85498

Abstract
  Let $S$ be a set of points in the plane that are in convex position. Let~$\cal O$ be a set of simple polygonal obstacles whose vertices are in $S$. The visibility graph $Vis(S,{\cal O})$  is the graph which is obtained from the complete graph of $S$ by removing all edges intersecting some obstacle ...  Read More

Plane Bounded-Degree Spanners Among the Obstacles for the Points in Convex Position

Davood Bakhshesh

Volume 53, Issue 2 , December 2021, , Pages 85-90

https://doi.org/10.22059/jac.2021.85252

Abstract
  Let $S$ be a set of points in the plane that are in convex position. Let~$\cal O$ be a set of simple polygonal obstacles whose vertices are in $S$. The visibility graph $Vis(S,{\cal O})$  is the graph which is obtained from the complete graph of $S$ by removing all edges intersecting some obstacle ...  Read More

$\alpha$-Gap Greedy Spanner

Hosein Salami; Mostafa Nouri Baygi

Volume 53, Issue 1 , June 2021, , Pages 41-60

https://doi.org/10.22059/jac.2021.81307

Abstract
  In this paper, we have introduced a new geometric spanner called $\alpha$-Gap greedy spanner, which is a parametric approximation of the well-known Gap-greedy spanner. We will show theoretically and experimentally that this spanner is similar to the Gap-greedy spanner in terms of qualitative features ...  Read More

Sweep Line Algorithm for Convex Hull Revisited

Keivan Borna

Volume 51, Issue 1 , June 2019, , Pages 1-14

https://doi.org/10.22059/jac.2019.71276

Abstract
  Convex hull of some given points is the intersection of all convex sets containing them. It is used as primary structure in many other problems in computational geometry and other areas like image processing, model identification, geographical data systems, and triangular computation of a set of points ...  Read More