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Hiroshi Nakazato

About Hiroshi Nakazato

Hiroshi Nakazato, With an exceptional h-index of 16 and a recent h-index of 8 (since 2020), a distinguished researcher at Hirosaki University, specializes in the field of numerical range.

His recent articles reflect a diverse array of research interests and contributions to the field:

The numerical range of periodic banded Toeplitz operators

Numerical ranges of cyclic shift matrices

Theta divisor and Abel map for 4-by-4 matrices

Joint numerical range with degenerate boundary generating variety

Elliptic modular invariants of 4-by-4 matrices

Inverse numerical range and Abel-Jacobi map of Hermitian determinantal representation

Computing real definite representations of Helton–Vinnikov theorem

The numerical range of a periodic tridiagonal operator reduces to the numerical range of a finite matrix

Hiroshi Nakazato Information

University

Position

___

Citations(all)

864

Citations(since 2020)

236

Cited By

723

hIndex(all)

16

hIndex(since 2020)

8

i10Index(all)

32

i10Index(since 2020)

4

Email

University Profile Page

Google Scholar

Hiroshi Nakazato Skills & Research Interests

numerical range

Top articles of Hiroshi Nakazato

The numerical range of periodic banded Toeplitz operators

Advances in Operator Theory

2024/1

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Numerical ranges of cyclic shift matrices

Linear Algebra and its Applications

2023/12/1

Steve Kirkland
Steve Kirkland

H-Index: 17

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Theta divisor and Abel map for 4-by-4 matrices

Linear Algebra and its Applications

2023/11/1

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Joint numerical range with degenerate boundary generating variety

Advances in Operator Theory

2023/10

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Elliptic modular invariants of 4-by-4 matrices

Linear Algebra and its Applications

2023/4/1

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Inverse numerical range and Abel-Jacobi map of Hermitian determinantal representation

Linear Algebra and its Applications

2022/1/15

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Computing real definite representations of Helton–Vinnikov theorem

Banach Journal of Mathematical Analysis

2022/4

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

The numerical range of a periodic tridiagonal operator reduces to the numerical range of a finite matrix

Journal of Mathematical Analysis and Applications

2022/2/15

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

The numerical range of some periodic tridiagonal operators is the convex hull of the numerical ranges of two finite matrices

Linear and multilinear algebra

2021/11/18

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Abel theorem and inverse numerical range

Linear Algebra and its Applications

2021/10/1

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

The diameter and width of higher rank numerical ranges

Linear and Multilinear Algebra

2021/4/4

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Computation of Riemann matrices of hyperbolic quartic curves

Linear and Multilinear Algebra

2021/4/4

Unitary similarity of a weighted shift matrix to a symmetric matrix

Linear Algebra and its Applications

2021/2/15

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Generating curves of the inverse q-numerical ranges of 2-by-2 matrices

Archiv der Mathematik

2020/12

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Mohammad Sal Moslehian
Mohammad Sal Moslehian

H-Index: 24

Ali Zamani
Ali Zamani

H-Index: 5

Inverse Numerical Range and Determinantal Quartic Curves

Mathematics

2020/11/26

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

Symmetry of cyclic weighted shift matrices with pivot-reversible weights

The Electronic Journal of Linear Algebra

2020/1/20

Hiroshi Nakazato
Hiroshi Nakazato

H-Index: 8

See List of Professors in Hiroshi Nakazato University(Hirosaki University)