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Number of items: 20.

Hindmarsh, J. L. and Lettington, M. C. ORCID: https://orcid.org/0000-0001-9327-143X 2023. On polynomial transformations preserving purely imaginary zeros. Integral Transforms and Special Functions 34 (7) , pp. 522-536. 10.1080/10652469.2022.2155643
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Lettington, Matthew ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, Karl ORCID: https://orcid.org/0000-0002-0227-3024 2023. On the sum of left and right circulant matrices. Linear Algebra and its Applications 658 , pp. 62-85. 10.1016/j.laa.2022.10.024
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Higham, Nicholas J. and Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2022. Optimizing and factorizing the Wilson matrix. American Mathematical Monthly 129 (5) , pp. 454-465. 10.1080/00029890.2022.2038006
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Higham, Nicholas J., Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, Karl Michael ORCID: https://orcid.org/0000-0002-0227-3024 2021. Integer matrix factorisations, superalgebras and the quadratic form obstruction. Linear Algebra and its Applications 622 , pp. 250-267. 10.1016/j.laa.2021.03.028
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, Karl Michael ORCID: https://orcid.org/0000-0002-0227-3024 2020. Divisor functions and the number of sum systems. Integers 20 , A61.
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Hill, S. L., Huxley, M. N., Lettington, M. C. ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, K. M. ORCID: https://orcid.org/0000-0002-0227-3024 2020. Some properties and applications of non-trivial divisor functions. Ramanujan Journal 51 10.1007/s11139-018-0093-9
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Coffey, Mark W. and Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2020. Binomial polynomials mimicking Riemann's zeta function. Integral Transforms and Special Functions 31 (11) , pp. 856-872. 10.1080/10652469.2020.1755672
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Huxley, M. N., Lettington, M. C. ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, K. M. ORCID: https://orcid.org/0000-0002-0227-3024 2019. On the structure of additive systems of integers. Periodica Mathematica Hungarica 78 , pp. 178-199. 10.1007/s10998-018-00275-w
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Hill, Sally, Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, Karl Michael ORCID: https://orcid.org/0000-0002-0227-3024 2018. Block representations and spectral properties of constant sum matrices. Electronic Journal of Linear Algebra 34 , pp. 170-190. 10.13001/1081-3810.3530
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X, Schmidt, Karl Michael ORCID: https://orcid.org/0000-0002-0227-3024 and Hill, Sally 2017. On superalgebras of matrices with symmetry properties. Linear and Multilinear Algebra 66 (8) , pp. 1538-1563. 10.1080/03081087.2017.1363153
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Coffey, Mark W., Hindmarsh, James L., Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X and Pryce, John D. ORCID: https://orcid.org/0000-0003-1702-7624 2017. On higher-dimensional Fibonacci numbers, Chebyshev polynomials and sequences of vector convergents. Journal de Theorie des Nombres de Bordeaux 29 (2) , pp. 369-423. 10.5802/jtnb.985
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Coffey, Mark W. and Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2017. Binomial polynomials mimicking Riemann's Zeta Function. [Online]. arXiv. Available at: https://arxiv.org/abs/1703.09251
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Lettington, Matthew ORCID: https://orcid.org/0000-0001-9327-143X and Coffey, Mark W. 2016. On Fibonacci polynomial expressions for sums of m-th powers, their implications for Faulhaber's formula and some theorems of fermat. [Online]. arXiv. Available at: https://arxiv.org/abs/1510.05402
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Coffey, Mark W. and Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2015. Mellin transforms with only critical zeros: Legendre functions. Journal of Number Theory 148 , pp. 507-536. 10.1016/j.jnt.2014.07.021
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Brunnock, Rochelle, Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X and Schmidt, Karl Michael ORCID: https://orcid.org/0000-0002-0227-3024 2014. On square roots and norms of matrices with symmetry properties. Linear Algebra and its Applications 459 , pp. 175-207. 10.1016/j.laa.2014.06.054
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2013. A trio of Bernoulli relations, their implications for the Ramanujan polynomials and the special values of the Riemann zeta function. Acta Arithmetica 158 (1) , pp. 1-31. 10.4064/aa158-1-1
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2011. Fleck's congruence, associated magic squares and a zeta identity. Functiones et Approximatio, Commentarii Mathematici 45 (2) , pp. 165-205. 10.7169/facm/1323705813
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2010. Integer points close to convex hypersurfaces. Acta Arithmetica 141 (1) , pp. 73-101. 10.4064/aa141-1-4
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2009. Integer points close to convex surfaces. Acta Arithmetica 138 (1) , pp. 1-23. 10.4064/aa138-1-1
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Lettington, Matthew C. ORCID: https://orcid.org/0000-0001-9327-143X 2008. Topics related to the theory of numbers: integer points close to convex hypersurfaces, associated magic squares and a zeta identity. PhD Thesis, Cardiff University.
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