Norifumi Ojiro

activity

20162026

most citedRational curves on a smooth Hermitian surface

3 citations · 3 across the 5 of their papers we have counts for

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math.AG2018★ 3 cited

Rational curves on a smooth Hermitian surface

Norifumi Ojiro

We study the set $R$ of nonplanar rational curves of degree $d < q + 2$ on a smooth Hermitian surface $X$ of degree $q + 1$ defined over an algebraically closed field of characteristic $…

math.NT2018

A $40$ -dimensional extremal Type II lattice with no $4$ -frames

Norifumi Ojiro

We construct a $40$ -dimensional extremal Type II lattice not having any subsets consisting of $40$ orthogonal minimal vectors, and determine the automorphism group. This lattice gi…

Rational curves on a smooth Hermitian surface

A 40-dimensional extremal Type II lattice with no 4-frames

A $40$ -dimensional extremal Type II lattice with no $4$ -frames