Items where Author is "Higgins, PM"
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Ahmad, I and Higgins, PM (2015) On the bandwidth of Mobius graphs. Bulletin of the Iranian Mathematical Society, 41 (3). pp. 545-550.
Catarino, P and Higgins, PM and Levi, I (2015) On inverse subsemigroups of the semigroup of orientation-preserving or orientation-reversing transformations. Algebra and Discrete Mathematics, 19 (2). pp. 162-171.
Higgins, PM and Alwan, S (2013) Languages that require full scanning of words to determine membership. Journal of Automata Languages and Combinatorics, 18 (2). pp. 71-96.
Descalço, L and Higgins, PM (2010) Generalized Green'S Equivalences on the Subsemigroups of the Bicyclic Monoid. Communications in Algebra, 38 (12). pp. 4597-4612. DOI https://doi.org/10.1080/00927870903432918
Higgins, PM (2008) Nets, puzzles and postmen, an exploration of mathematical connections. Oxford University Press. ISBN 9780199218424.
Higgins, PM (2008) Number Story, from Counting to Cryptography. Copernicus Press, Springer-Verlag. ISBN 9781848000001.