Interlando, J. CarmeloNeto, Trajano Pires da Nóbrega [UNESP]Nunes, José Valter LopesLopes, José Othon Dantas2022-04-302022-04-302017-01-01International Journal of Applied Mathematics, v. 30, n. 5, p. 401-408, 2017.1314-80601311-1728http://hdl.handle.net/11449/232687Four-dimensional lattices with block circulant generator matrices are constructed from submodules of the ring of integers of the totally real number field ℚ(√2,√5). The obtained lattices are of full diversity and their sphere packing densities are the highest known for the given relative minimum product distances.401-408engLatticesMinimum product distanceModulationNumber fieldsSphere packingsArtigo10.12732/ijam.v30i5.42-s2.0-85037161858