Shiho Oi

Profile Information

Affiliation: Assistant Professor, Faculty of Science Department of Science, Niigata University

Degree: 博士(理学)(新潟大学)

J-GLOBAL ID: 202001013756064887
researchmap Member ID: R000008690

Research Interests

Research Areas

Papers

ISOMETRIES AND HERMITIAN OPERATORS ON SPACES OF VECTOR-VALUED LIPSCHITZ MAPS

Shiho Oi

Journal of the Institute of Mathematics of Jussieu, 1-18, Nov 14, 2023 Peer-reviewed
Isometries, Jordan *-isomorphisms and order isomorphisms on spaces of a unital $C^*$-algebra-valued continuous maps

Shiho OI

(B93) 133-141, Jul, 2023 Peer-reviewed
Linear preservers on idempotents of Fourier algebras

Ying-Fen Lin, Shiho Oi

Canadian Mathematical Bulletin, 1-15, May 17, 2023 Peer-reviewed
Jordan ∗-homomorphisms on the spaces of continuous maps taking values in C∗-algebras

Shiho Oi

Studia Math., 269(no.1.) 107-119, 2023 Peer-reviewed
Tingley's problems on uniform algebras

Osamu Hatori, Shiho Oi, Rumi Shindo Togashi

Journal of Mathematical Analysis and Applications, 503(2) 125346-125346, Nov, 2021 Peer-reviewed
A spherical version of the Kowalski-Slodkowski theorem and its applications

Oi Shiho

Journal of the Australian Mathematical Society, 2020 Peer-reviewed
Hermitian operators and isometries on algebras of matrix-valued Lipschitz maps

Oi Shiho

Linear and Multilinear Algebra, 68(6) 1096-1112, 2020 Peer-reviewed
Hermitian operators and isometries on injective tensor products of uniform algebras and C*-algebras

Hatori Osamu, Kawamura Kazuhiro, Oi Shiho

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 472(1) 827-841, Apr, 2019 Peer-reviewed
Algebraic reflexivity of isometry groups of algebras of Lipschitz maps

Oi Shiho

LINEAR ALGEBRA AND ITS APPLICATIONS, 566 167-182, Apr, 2019 Peer-reviewed
2-local isometries on function spaces

O.Hatori, S.Oi

Contemporary Mathematics, 737 89-106, 2019 Peer-reviewed
Peculiar homomorphisms between algebras of vector-valued maps

Hatori Osamu, Oi Shiho, Takagi Hiroyuki

STUDIA MATHEMATICA, 242(2) 141-163, 2018 Peer-reviewed
Isometries on Banach algebras of vector-valued maps

Hatori Osamu, Oi Shiho

ACTA SCIENTIARUM MATHEMATICARUM, 84(1-2) 151-183, 2018 Peer-reviewed
Hermitian operators on Banach algebras of vector-valued Lipschitz maps (vol 452, pg 378, 2017)

Hatori Osamu, Oi Shiho

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 453(2) 1151-1152, Sep 15, 2017 Peer-reviewed
Hermitian operators on Banach algebras of vector-valued Lipschitz maps

Hatori Osamu, Oi Shiho

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 452(1) 378-387, Aug, 2017 Peer-reviewed
Peculiar homomorphisms on algebras of vector-valued continuously differentiable maps

O.Hatori, S.Oi, H.Takagi

Linear and Nonlinear Analysis, 3 101-109, 2017 Peer-reviewed
Homomorphisms between algebras of Lipschitz functions with the values in function algebras

Oi Shiho

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 444(1) 210-229, Dec, 2016 Peer-reviewed

Misc.

HERMITIAN OPERATORS ON BANACH ALGEBRAS OF VECTOR-VALUED LIPSCHITZ MAPS : JOINT WORK WITH OSAMU HATORI (等距離写像研究の多角的アプローチ)

OI SHIHO, HATORI OSAMU

数理解析研究所講究録, (2035) 168-172, Jul, 2017

Presentations

Surjective linear isometries on Banach algebras of continuous functions

Shiho Oi

Trojan Math Seminar, Troy University, Jan 25, 2024 Invited
Isometries between groups of invertible elements in Fourier-Stieltjes algebras

Shiho Oi

Joint Mathematics Meetings 2024 (AMS Special Session on New Faces in Operator Theory and Function Theory), Jan 6, 2024 Invited
フーリエ環のべき等元を保存する写像

大井志穂

2023年度関数環研究集会, Dec 10, 2023
Linear preservers on idempotents of Fourier algebras

Shiho OI

Recent Progress in Operator Theory and its Applications (RIMS 共同研究), Nov 7, 2023
バナッハ環におけるノルム構造，代数構造，順序構造の関係

大井志穂

日本数学会秋季総合分科会 2023, Sep 22, 2023 Invited
Linear operators on Fourier algebras preserving idempotents

Shiho OI

The 6th Niigata Seminar, Aug 17, 2023
バナッハ環上の全射線形等距離写像について

大井志穂

東京都立大学・幾何学セミナー, Jun 16, 2023
Unital surjective linear isometries on Lipchitz algebras taking values in primitive $C^{*}$-algebras

Shiho OI

Workshop on Function spaces and related topics, Apr 5, 2023
行列値リプシッツ環上の全射線形等距離写像の代数的反射性

大井志穂

2023年日本数学会年会, Mar 17, 2023
C*環に値をとる連続写像のなすバナッハ環上の等距離写像

大井志穂

第8 回山陰基礎論と数学およびその周辺の研究集会, Jan 8, 2023
Surjective isometries and Hermitian operators on vector-valued Lipschitz algebras

Shiho Oi

2022 Japan-China International Conference on matrix theory with applications, Dec 18, 2022 Invited
C∗ 環に値をとるリプシッツ関数のなすバナッハ環上の等距離写像

大井志穂

第11 回信州関数解析シンポジウム, Nov 25, 2022 Invited
C∗ 環値リプシッツ環の間の Jordan* 同型写像とその応用

大井志穂

2022 年度関数環研究集会, Nov 12, 2022
Kowalski-S\l odkowskiの定理と2-local等距離写像

大井志穂

第 6 回幾何学的群論ワークショップ, Oct 28, 2022 Invited
2-local isometries on commutative Banach algebras

Shiho Oi

Women in Operator Theory, Oct 15, 2022 Invited
C*環に値をとるリプシッツ環上のJordan* 準同型写像

大井志穂

日本数学会 2022年度秋季総合分科会, Sep 15, 2022
C*環に値をとる連続写像のなすバナッハ環上の保存問題

大井志穂

第69回トポロジ―シンポジウム, Aug 18, 2022 Invited
Jordan *-homomorphisms on *-algebras of vector-valued continuous maps

Shiho Oi

Operators on Banach algebras and related topics, Tarbiat Modares University, Iran, Jul 17, 2022 Invited
C*環に値をとる連続写像のなすバナッハ環上のJordan* 同型写像

大井志穂

2021年度関数環研究集会, Dec 18, 2021
リプシッツ写像のなすBanach 環の距離構造と代数構造

2021年度ジェネラルトポロジーシンポジウム, Dec 6, 2021 Invited

Teaching Experience

Oct, 2021 - Present

The world of Mathematics (Niigata University)
Oct, 2021 - Present

Advanced Theory of Function Spaces (Niigata University)
Apr, 2021 - Present

Seminar in Mathematics (Niigata University)
Apr, 2021 - Present

Basic Practice on Mathematics b (Niigata University)
Apr, 2021 - Present

Basic Practice on Mathematics a (Niigata University)
Apr, 2021 - Present

Fundamentals of Analysis 2 (Niigata University)
Apr, 2021 - Present

Fundamentals of Analysis 1 (Niigata University)
Oct, 2020 - Present

Mathematics Exercise B (Niigata University)
Oct, 2020 - Present

Mathematics Exercise A (Niigata University)
Oct, 2020 - Present

Set and Mapping (Niigata University)

Professional Memberships

日本数学会

Research Projects

Isometries on Banach algebras

Grants-in-Aid for Scientific Research, Grant-in-Aid for Early-Career Scientists, Japan Society for the Promotion of Science, Apr, 2021 - Mar, 2025
Banach空間上のスペクトル保存写像とその応用

科学研究費助成事業, 基盤研究(C), 日本学術振興会, Apr, 2020 - Mar, 2024

三浦毅, 大井志穂

Profile Information

Research Interests

Research Areas

Papers

Misc.

Presentations

Teaching Experience

Professional Memberships

Research Projects

Menu

Coauthors