Anna Lubiw

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Anna Lubiw
Alma materUniversity of Toronto
Known forComputational geometry, graph theory
SpouseJeffrey Shallit
AwardsACM Distinguished Member, 2009

Anna Lubiw is a computer scientist known for her work in computational geometry and graph theory. She is currently a professor at the University of Waterloo.[1]


Lubiw received her Ph.D from the University of Toronto in 1986 under the joint supervision of Rudolf Mathon and Stephen Cook.[2]


At Waterloo, Lubiw's students have included both Erik Demaine and his father Martin Demaine,[3] with whom she published the first proof of the fold-and-cut theorem in mathematical origami.[4] In graph drawing, Hutton and Lubiw found a polynomial time algorithm for upward planar drawing of graphs with a single source vertex.[5] Other contributions of Lubiw include proving the NP-completeness of finding permutation patterns,[6] and of finding derangements in permutation groups.[7]


Lubiw was named an ACM Distinguished Member in 2009.[8]

Personal life[edit]

As well her academic work, Lubiw is an amateur violinist,[9] and chairs the volunteer council in charge of the University of Waterloo orchestra.[10] She is married to Jeffrey Shallit, also a computer scientist.

Selected publications[edit]

  • Lubiw, Anna (1981), "Some NP-complete problems similar to graph isomorphism", SIAM Journal on Computing, 10 (1): 11–21, doi:10.1137/0210002, MR 0605600.
  • Hutton, Michael D.; Lubiw, Anna (1996), "Upward planar drawing of single-source acyclic digraphs", SIAM Journal on Computing, 25 (2): 291–311, doi:10.1137/S0097539792235906, MR 1379303, S2CID 207078756. First presented at the 2nd ACM-SIAM Symposium on Discrete Algorithms, 1991.
  • Bose, Prosenjit; Buss, Jonathan F.; Lubiw, Anna (1998), "Pattern matching for permutations", Information Processing Letters, 65 (5): 277–283, doi:10.1016/S0020-0190(97)00209-3, MR 1620935. First presented at WADS 1993.
  • Demaine, Erik D.; Demaine, Martin L.; Lubiw, Anna (1999), "Folding and one straight cut suffice", Proceedings of the Tenth Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '99), pp. 891–892.


  1. ^ Faculty profile Archived 2013-07-22 at the Wayback Machine, University of Waterloo, retrieved 2013-10-16.
  2. ^ Anna Lubiw at the Mathematics Genealogy Project
  3. ^ "Maths star from outside the fold", Times Higher Education, March 29, 2002.
  4. ^ Demaine, Demaine & Lubiw (1999); O'Rourke, Joseph (2013), How to Fold It, Cambridge University Press, p. 144, ISBN 9781139498548.
  5. ^ Hutton & Lubiw (1996); Di Battista, Giuseppe; Eades, Peter; Tamassia, Roberto; Tollis, Ioannis G. (1998), "Optimal Upward Planarity Testing of Single-Source Digraphs", Graph Drawing: Algorithms for the Visualization of Graphs, Prentice Hall, pp. 195–200, ISBN 978-0-13-301615-4.
  6. ^ Bose, Buss & Lubiw (1998); Brignall, Robert (2010), "A survey of simple permutations", in Linton, Steve; Ruškuc, Nik; Vatter, Vincent (eds.), Permutation Patterns, London Mathematical Society Lecture Note Series, vol. 376, Cambridge University Press, pp. 41–66, ISBN 9781139488846, MR 2732823. See in particular pp. 61–62.
  7. ^ Lubiw (1981); Babai, László (1995), "Automorphism groups, isomorphism, reconstruction", Handbook of combinatorics, Vol. 1, 2 (PDF), Amsterdam: Elsevier, pp. 1447–1540, MR 1373683, A surprising result of Anna Lubiw asserts that the following problem is NP-complete: Does a given permutation group have a fixed-point-free element?.
  8. ^ ACM Distinguished member page:
  9. ^ "Love of music guides fledgling ensemble", Kitchener Record, November 29, 2005.
  10. ^ About the orchestra Archived 2013-06-05 at the Wayback Machine, Univ. of Waterloo, retrieved 2013-10-16.

External links[edit]