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Universal |
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| Authors: | Byeong-Kweon Oh |
| Affiliation: | Department of Mathematics, Seoul National University, Seoul, 151-742, Korea |
| Abstract: | Let  be the minimal rank of  -universal  -lattices, by which we mean positive definite  -lattices which represent all positive  -lattices of rank  . It is a well known fact that  for  . In this paper, we determine  and find all  -universal lattices of rank  for  . |
| Keywords: | $n$-universal lattice $U_{mathbb{Z}}(n)$ root lattice additively indecomposable |
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