Some Extremal Self-Dual Codes and Unimodular Lattices in Dimension 40

@article{Harada2013SomeES,
  title={Some Extremal Self-Dual Codes and Unimodular Lattices in Dimension 40},
  author={Masaaki Harada},
  journal={Finite Fields and Their Applications},
  year={2013},
  volume={21},
  pages={67-83}
}
In this paper, binary extremal singly even self-dual codes of length 40 and extremal odd unimodular lattices in dimension 40 are studied. We give a classification of extremal singly even self-dual codes of length 40. We also give a classification of extremal odd unimodular lattices in dimension 40 with shadows having 80 vectors of norm 2 through their relationships with extremal doubly even self-dual codes of length 40. 
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