David Eppstein – Publications

Publications with Kshitij Jain

• Reconfiguring undirected paths.
  E. Demaine, D. Eppstein, A. Hesterberg, K. Jain, A. Lubiw, R. Uehara, and Y. Uno.
  arXiv:1905.00518.
  16th Algorithms and Data Structures Symp. (WADS 2019), Edmonton, Alberta.
  Springer, Lecture Notes in Comp. Sci. 11646 (2019), pp. 353–365.

  A motion that slides an undirected path along its length from one configuration to another in a graph (allowing moves in both directions) can be found in time that is fixed-parameter tractable in the path length. However the problem is PSPACE-complete for paths of unbounded length, even when the host graph has bounded bandwidth.

  (WADS'19 slides)

• Face flips in origami tessellations.
  H. A. Akitaya, V. Dujmović, D. Eppstein, T. Hull, K. Jain, and A. Lubiw.
  arXiv:1910.05667.
  J. Computational Geometry 11 (1): 397–417, 2020.

  We study problems in which we are given an origami crease pattern and seek to reconfigure one locally flat foldable mountain-valley assignment into another by a sequence of operations that change the assignment around a single face of the crease pattern.