Hiroshi Nozaki

activity

20062025

most citedOn the zeros of Eisenstein series for

Γ_{0}^{*} (2)

and

Γ_{0}^{*} (3)

26 citations · 53 across the 32 of their papers we have counts for

collaborators

Showing 2015Show all

4 papers · 1 filter

math.CO2015

Complex spherical codes with three inner products

Hiroshi Nozaki, Sho Suda

Let $X$ be a finite set in a complex sphere of $d$ dimension. Let $D (X)$ be the set of usual inner products of two distinct vectors in $X$ . A set $X$ is called a complex spherical…

math.CO2015

On the largest subsets avoiding the diameter of $(0, \pm 1)$ -vectors

Saori Adachi, Hiroshi Nozaki

Let $L_{mk l} \subset R^{m + k + l}$ be the set of vectors which have $m$ of entries $- 1$ , $k$ of entries $0$ , and $l$ of entries $1$ . In this paper, we investigate the largest…

math.CO2015★ 1 cited

Maximizing the order of a regular graph of given valency and second eigenvalue

Sebastian M. Cioabă, Jack H. Koolen, Hiroshi Nozaki +1

From Alon and Boppana, and Serre, we know that for any given integer $k \geq 3$ and real number $λ < 2 k - 1$ , there are finitely many $k$ -regular graphs whose second largest eige…

math.CO2015

Complex spherical codes with two inner products

Hiroshi Nozaki, Sho Suda

A finite set $X$ in a complex sphere is called a complex spherical $2$ -code if the number of inner products between two distinct vectors in $X$ is equal to $2$ . In this paper, we c…

Complex spherical codes with three inner products

On the largest subsets avoiding the diameter of (0,±1)-vectors

Maximizing the order of a regular graph of given valency and second eigenvalue

Complex spherical codes with two inner products

On the largest subsets avoiding the diameter of $(0, \pm 1)$ -vectors