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Avoiding approximate repetitions with respect to the longest common subsequence distance 

Camungol, Serina; Rampersad, Narad (Mathematical Sciences Publishers, 2015-09-17)
Ochem, Rampersad, and Shallit gave various examples of infinite words avoiding what they called approximate repetitions. An approximate repetition is a factor of the form x x', where x and x' are close to being identical. ...
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Mathematical Concepts and Proofs from Nicole Oresme: Using the History of Calculus to Teach Mathematics 

Babb, Jeff (2005)
This paper examines the mathematical work of the French bishop, Nicole Oresme (c. 1323–1382), and his contributions towards the development of the concept of graphing functions and approaches to investigating infinite ...
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Regular Two-Graphs and Equiangular Lines 

Gosselin, Shonda (University of Winnipeg, 2004)
Regular two-graphs are antipodal distance-regular double coverings of the complete graph, and they have many interesting combinatorial properties. We derive a construction for regular two-graphs containing cliques of ...
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Multi-dimensional sets recognizable in all abstract numeration systems 

Charlier, Émilie; Lacroix, Anne; Rampersad, Narad (EDP Sciences, 2011)
We prove that the subsets of Nd that are S-recognizable for all abstract numeration systems S are exactly the 1-recognizable sets. This generalizes a result of Lecomte and Rigo in the one-dimensional setting.
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Avoidability index for binary patterns with reversal 

Currie, James D.; Lafrance, Phillip (2017)
For every pattern p over the alphabet {x,x^R,y,y^R}, we specify the least k such that p is k-avoidable.
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A direct proof of a result of Thue 

Currie, James D. (Utilitas Mathematica, 1984)
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The Aveline's Hole 9 Cranium: A Partial Solution to a Long Standing Enigma 

Meiklejohn, Christopher; Schulting, Rick; Musgrave, Jonathan; Babb, Jeff; Higham, Thomas; Richards, David; Mullan, Graham (University of Bristol Spelaeological Society, 2012)
Aveline's Hole is both one of the best-known sites with early human skeletal material in Britain and one of the most problematic in its history. First discovered and explored at the close of the 18th century, it yielded ...
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Supporting Teachers in Times of Change: The Job Demands- Resources Model and Teacher Burnout During the COVID-19 Pandemic 

Sokal, Laura J.; Trudel, Lesley G. Eblie; Babb, Jeff C. (RedFame, 2020-10)
Burnout in teachers has been broadly investigated, but no studies have investigated burnout in teachers during a pandemic. The current study is based on a survey of 1278 Canadian teachers and examined whether the Job ...
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Square-free Words with Square-free Self-shuffles 

Currie, James D.; Saari, Kalle (The Electronic Journal of Combinatorics, 2014-01-12)
We answer a question of Harju: For every n ≥ 3 there is a square-free ternary word of length n with a square-free self-shuffle.
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The Brachistochrone Problem: Mathematics for a Broad Audience via a Large Context Problem 

Babb, Jeff; Currie, James (Montana Council of Teachers of Mathematics & Information Age Publishing, 2008)
Large context problems (LCP) are useful in teaching the history of science. In this article we consider the brachistochrone problem in a context stretching from Euclid through the Bernoullis. We highlight a variety of ...
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AuthorCurrie, James D. (27)Rampersad, Narad (25)Babb, Jeff (10)Currie, James (10)Gosselin, Shonda (6)Saari, Kalle (4)Shallit, Jeffrey (4)Sokal, Laura (4)Trudel, Lesley Eblie (4)Aberkane, Ali (3)... View MoreSubjectSelf-complementary graphs (4)Complementing permutation (3)Infinite words (3)Pattern avoidance (3)Aveline's Hole (2)Combinatorics on words (2)Pandemic (2)Thue-Morse word (2)Uniform hypergraphs (2)Abelian pattern avoidance (1)... View MoreDate Issued2010 - 2020 (39)2000 - 2009 (20)1990 - 1999 (5)1982 - 1989 (5)Has File(s)Yes (69)

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