Publicação: Algebraic construction of lattices via maximal quaternion orders
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In this paper we propose a framework to construct algebraic lattices in dimensions 4n via ideals from maximal orders of a quaternion algebra whose center is a totally real number field. For n=1,2,3,4 and 6 it was possible to construct rotated versions of the densest lattices in their dimensions, D4,E8,K12,Λ16 and Λ24. We also present a family of lattices in dimension 2r from A=(−1,−1)Q(ζ2r +ζ2r −1) and a characterization of a maximal quaternion order of A by using the Chebyshev polynomials.
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Center density, Lattices, Maximal orders, Quaternion algebras, Space-time codes
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Inglês
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Journal of Pure and Applied Algebra, v. 224, n. 5, 2020.
