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Linear Time Recognition of Squarefree Strings
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“All computations in this paper that verify that a word is square-free can be done quickly using the Main-Lorentz algorithm described in their 1985 paper [5].”
From The Lexicographically Least Square-Free Word with a Given Prefix (2023) · cites this paper as [5]
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Research works printed but not linked: 18
- A. Apostolico and F.P. Preparata, Optimal off-line detection of repetitions in a string, TCS 22 (1983) 297–315. · doi:10.1016/0304-3975(83)90109-3
- S.E. Arshon, Dokazatel’stov suscestvovanija n-znacnyh beskonecnyh asim-metricnyh posledovatel’nostei, Mat. Sb. 44 (1937), 769–779.
- D.R. Bean, A. Ehrenfeucht and G.F. McNulty, Avoidable patterns in strings of symbols, Pacific J. Math., 85 (1979), 261–294. · doi:10.2140/pjm.1979.85.261
- J. Berstel, Sur les mots sans carre definis par un morphisme, in Automata, Languages and Programming (A. Maurer, Ed.), LNCS 71, Springer-Verlag, Berlin, 1979, 16–25. · doi:10.1007/3-540-09510-1_2
- J. Berstel, Mots sans carre et morphismes iters, Discrete Math. 29 (1979), 235–244. · doi:10.1016/0012-365x(80)90151-x
- C.H. Braunholtz, Solution to problem 5030, Am. Math. Mo. 70 (1963), 675–676. · doi:10.2307/2311652
- M. Crochemore, Determination optimale des repetitions dans un mot, Technical Report 80–53, Laboratoire Informatique Theorique et Programmation, University of Paris (1981).
- M. Crochemore, An optimal algorithm for computing repetitions in a word, IPL 12 (1981), 244–250. · DOI
- A.A. Evdokimov, Strongly asymmetric sequences generated by a finite number of symbols, Soviet Math. Dokl., 9 (1968), 536–539.
- D. Hawkins and W.E. Mientka, On sequences which contain no repetitions, Math. Student 24 (1956), 185–187. MR 19 (1958) #241.
- G.A. Hedlund, Remarks on the work of Axel Thue on sequences, Nord. Mat. Tidskr. 16 (1967), 148–150. MR 37 (1959), #4454.
- M.G. Main and R.J. Lorentz, An 0(n logn) algorithm for finding all repetitions in a string, J. of Algorithms, to appear (1984). · doi:10.1016/0196-6774(84)90021-x
- M. Morse, A solution of the problem of infinite play in chess, Bull. Amer. Math. Soc., 44 (1938), 632.
- M. Morse and G.A. Hedlund, Unending chess, symbolic dynamics and a problem in semigroups, Duke Math. J. 11 (1944), 1–7. MR 5 (1944) #202. · doi:10.1215/s0012-7094-44-01101-4
- P.A.B. Pleasants, Nonrepetitive sequences, Proc. Cambridge Phil. Soc. 68 (1970), 267–274. · doi:10.1017/s0305004100046077
- A. Thue, Uber unendliche Zeichenreihen. Norske Wdenskabers Selskabs Skrifter Mat.-Nat. Kl. (Kristiania) (1906), Nr. 7, 1–22.
- A. Thue, Uber die gegenseitige Lage gleicher Teile gewisser Zeichenreihen, Norske Vlcienskabers Selskabs Skrifter Mat.-Nat. Kl. (Kristiania) (1912), Nr. 1, 1–67.
- T. Zech, Wiederholungsfreie Folgen, Z. Angew. Math. Mech. 38 (1958), 206–209. · doi:10.1002/zamm.19580380510
Cited by
The Lexicographically Least Square-Free Word with a Given Prefix
Berera, S., Gómez-Colunga, A., Lakerdas-Gayle, J., López, J., Matin, M., Roebuck, D., Rowland, E., Scully, N., & Whidden, J. (2023) · The Electronic Journal of Combinatorics · doi:10.37236/11659
Metadata
- Authors
- Main, M. G., & Lorentz, R. J.
- Venue
- Combinatorial Algorithms on Words
- Publisher
- Springer Berlin Heidelberg
- Published
- 1985
- Pages
- 271-278
- Cited by
- 21
- References
- 0
- Language
- en
- Licence
- www.springer.com/tdm (tdm)
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
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How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Linear Time Recognition of Squarefree Strings. https://app.cochat.ai/papers/10.1007/978-3-642-82456-2_18
- The paper
- Main, M. G., & Lorentz, R. J. (1985). Linear Time Recognition of Squarefree Strings. Combinatorial Algorithms on Words. https://doi.org/10.1007/978-3-642-82456-2_18
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.