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math.NT2013
Dense lattices in low dimensions
Hao Chen
The Barnes-Wall lattice with the center density ${\{1}{16}}$ and the kissing number 4320 was found in 1959 and is the only known densest sphere packing in the dimens…
math.NT2013
A ternary construction of lattices
Hao Chen
In this paper we propose a general ternary construction of lattices from three rows and ternary codes. Most laminated lattices and Kappa lattices in , can be…