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Skeleton Cave, Leigh Woods, Bristol 

Mullan, G. J.; Meiklejohn, C.; Babb, J. (University of Bristol Spelaeological Society, 2017)
An account is given of the discovery and excavation of this small cave in the 1960s. It is recorded that archaeological finds were made, but of these, only a single human mandible can now be traced. Radiocarbon dating shows ...
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Combinatorics and Algorithmics of Strings 

Crochemore, Maxime; Currie, James D.; Kucherov, Gregory; Nowotka, Dirk (Dagstuhl Publishing, 2014-03-09)
Strings (aka sequences or words) form the most basic and natural data structure. They occur whenever information is electronically transmitted (as bit streams), when natural language text is spoken or written down (as words ...
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Unary patterns under permutations 

Currie, James D.; Nowotka, Dirk; Manea, Florin; Reshadi, Kamellia (Elsevier, 2018-06-04)
Thue characterized completely the avoidability of unary patterns. Adding function variables gives a general setting capturing avoidance of powers, avoidance of patterns with palindromes, avoidance of powers under coding, ...
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Least Periods of Factors of Infinite Words 

Currie, James D.; Saari, Kalle (EDP Sciences, 2009)
We show that any positive integer is the least period of a factor of the Thue-Morse word. We also characterize the set of least periods of factors of a Sturmian word. In particular, the corresponding set for the Fibonacci ...
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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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Sliding Down Inclines with Fixed Descent Time: a Converse to Galileo's Law of Chords 

Babb, Jeff (Canadian Mathematical Society, 2008-12)
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Dejean's conjecture holds for n ≥ 27 

Currie, James; Rampersad, Narad (EDP Sciences, 2009)
We show that Dejean’s conjecture holds for n ≥ 27. This brings the final resolution of the conjecture by the approach of Moulin Ollagnier within range of the computationally feasible.
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COVID-19’s Second Wave: How are teachers faring with the return to physical schools? 

EdCan. Well at Work; Ranby, Sarah; Rebeiz, André; Sokal, Laura; Eblie Trudel, Lesley; Babb, Jeff (Canadian Education Network, 2020-11-20)
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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.; Eblie Trudel, Lesley G.; 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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AuthorCurrie, James D. (27)Rampersad, Narad (25)Babb, Jeff (12)Currie, James (10)Eblie Trudel, Lesley (6)Gosselin, Shonda (6)Sokal, Laura (6)Saari, Kalle (4)Shallit, Jeffrey (4)Aberkane, Ali (3)... View MoreSubjectSelf-complementary graphs (4)Burnout (3)Complementing permutation (3)Infinite words (3)Pandemic (3)Pattern avoidance (3)Teachers (3)Aveline's Hole (2)Combinatorics on words (2)Resilience (2)... View MoreDate Issued2020 - 2022 (10)2010 - 2019 (33)2000 - 2009 (20)1990 - 1999 (5)1982 - 1989 (5)Has File(s)
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