Naokawa Kosuke 直川耕祐

Researcher Number	60740826
Affiliation (Current)	2025: 広島工業大学, 情報学部, 准教授
Affiliation (based on the past Project Information) *help	2019 – 2023: 広島工業大学, 情報学部, 准教授 2016 – 2022: 神戸大学, 理学研究科, 特別研究員(PD) 2017 – 2018: 広島工業大学, 情報学部, 助教 2015: 神戸大学, 理学(系)研究科(研究院), 研究員
Review Section/Research Field	Principal Investigator Geometry Except Principal Investigator Geometry
Keywords	Principal Investigator 離散微分幾何学 / 微分幾何学 / 幾何学 / 等長変形 / コソフスキ計量 / 結び目 / 異性体 / 曲線折り / 離散化 / カスプ状交叉帽子 … More / 燕の尾 / 折り紙 / 等長実現 / 交叉帽子 / カスプ辺 / 特異点 / メビウスの帯 / 離散曲面 / 可展面 … More Except Principal Investigator Moebius geometry / integrable systems / semi-discrete surfaces / Guichard surfaces / orthogonal systems / channel surfaces / Omega surface / minimal surface / discrete geometry / 半離散曲面 / Darboux変換 / 特異点 / 離散曲線 / 離散曲面 / 離散的微分幾何学 / Darboux transformations / Omega surfaces / Lorentzian spaces / Discrete Surface Theory / Differential Geometry / discrete surfaces / Lie sphere geometry / surface representations / transformation theory / surface theory / differential geometry Less

Discretization of differential geometric structures of surfaces with singularitiesPrincipal Investigator
- Principal Investigator
  
  Naokawa Kosuke
- Project Period (FY)
  2017 – 2023
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geometry
- Research Institution
  Hiroshima Institute of Technology
Differential geometric approach to discrete surfaces
- Principal Investigator
  
  ROSSMAN W. F
- Project Period (FY)
  2015 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Kobe University

All 2024 2023 2022 2021 2020 2019 2018 2017

All Journal Article Presentation

[Journal Article] Symmetries of cross caps2023
- Author(s)
  A. Honda, K. Naokawa, K. Saji, M. Umehara, K. Yamada
- Journal Title
  
  Tohoku Mathematical Journal
  
  Volume: 75 Issue: 1 Pages: 131-141
- DOI
  10.2748/tmj.20211203
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-22KK0034, KAKENHI-PROJECT-22K03312, KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-23K20794, KAKENHI-PROJECT-23K22392
[Journal Article] A generalization of Zakalyukin's lemma, and symmetries of surface singularities2022
- Author(s)
  Honda Atsufumi、Naokawa Kosuke、Saji Kentaro、Umehara Masaaki、Yamada Kotaro
- Journal Title
  
  Journal of Singularities
  
  Volume: 25 Pages: 299-324
- DOI
  10.5427/jsing.2022.25m
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-23K20794, KAKENHI-PROJECT-23K22392
[Journal Article] Symmetries of cross caps2022
- Author(s)
  A. Honda, K. Naokawa, K. Saji, M. Umehara, K. Yamada
- Journal Title
  
  Tohoku Mathematical Journal
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14197
[Journal Article] On the existence of four or more curved foldings with common creases and crease patterns2021
- Author(s)
  A. Honda, K. Naokawa, K. Saji, M. Umehara, K. Yamada
- Journal Title
  
  Beitraege zur Algebra und Geometrie
  
  Volume: - Issue: 4 Pages: 723-761
- DOI
  10.1007/s13366-021-00602-2
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526
[Journal Article] Cuspidal edges with the same first fundamental forms along a knot2020
- Author(s)
  Honda Atsufumi、Naokawa Kosuke、Saji Kentaro、Umehara Masaaki、Yamada Kotaro
- Journal Title
  
  Journal of Knot Theory and Its Ramifications
  
  Volume: 29 Issue: 07 Pages: 2050047-2050047
- DOI
  10.1142/s0218216520500479
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526
[Journal Article] Curved foldings with common creases and crease patterns2020
- Author(s)
  Honda Atsufumi、Naokawa Kosuke、Saji Kentaro、Umehara Masaaki、Yamada Kotaro
- Journal Title
  
  Advances in Applied Mathematics
  
  Volume: 121 Pages: 102083-102083
- DOI
  10.1016/j.aam.2020.102083
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-17H02839
[Journal Article] Duality on generalized cuspidal edges preserving singular set images and first fundamental forms2020
- Author(s)
  Honda Atsufumi、Naokawa Kosuke、Saji Kentaro、Umehara Masaaki、Yamada Kotaro
- Journal Title
  
  Journal of Singularities
  
  Volume: 22 Pages: 59-91
- DOI
  10.5427/jsing.2020.22e
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526
[Journal Article] Isometric deformations of wave fronts at non-degenerate singular points2020
- Author(s)
  A. Honda, K. Naokawa, M. Umehara, K. Yamada
- Journal Title
  
  Hiroshima Mathematical Journal
  
  Volume: 50 Issue: 3 Pages: 269-312
- DOI
  10.32917/hmj/1607396490
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526
[Journal Article] Isometric realization of cross caps as formal power series and its applications2019
- Author(s)
  HONDA Atsufumi、NAOKAWA Kosuke、UMEHARA Masaaki、YAMADA Kotaro
- Journal Title
  
  Hokkaido Mathematical Journal
  
  Volume: 48 Issue: 1 Pages: 1-44
- DOI
  10.14492/hokmj/1550480642
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-16K17605
[Journal Article] Isometric realizations of cross caps as formal power series and its applications2018
- Author(s)
  A. Honda, K. Naokawa, M. Umehara, K. Yamada
- Journal Title
  
  Hokkaido Math. J.
  
  Volume: to appear
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] 可展面に現れるカスプ辺・燕の尾特異点の離散化2024
- Author(s)
  直川耕祐
- Organizer
  HIT-Math 2024 ミニワークショップ
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] 離散可展面とその特異点について2023
- Author(s)
  直川耕祐
- Organizer
  RIMS研究集会「部分多様体と群作用の幾何学」
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Discrete developable surfaces and their singularities2022
- Author(s)
  Kosuke Naokawa
- Organizer
  Discrete Geometric Analysis and its Applications
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] 折り紙の曲線折りについて2021
- Author(s)
  直川耕祐
- Organizer
  第1回マス・フォア・イノベーションセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Curved foldings with given creases and crease patterns2020
- Author(s)
  Kosuke Naokawa
- Organizer
  Geometric shape generation
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Topologies and singularities of discrete developable surfaces2020
- Author(s)
  Kosuke Naokawa
- Organizer
  Workshop and School on Geometric Analysis and Discrete Geometry, KIAS
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] 可展面の離散化とその特異点について2019
- Author(s)
  直川耕祐
- Organizer
  Workshop on Submanifold theory in a wider sense
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] On discrete developable Mobius strips2019
- Author(s)
  Kosuke Naokawa
- Organizer
  九州大学トポロジーセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] 可展面の離散化とそのトポロジーおよび特異点について2019
- Author(s)
  直川耕祐
- Organizer
  広島幾何学研究集会 2019
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Developable Mebius strips and their discretization II2018
- Author(s)
  Kosuke Naokawa
- Organizer
  Mini-Workshop on Geometry and Mathematical Science
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Developable Mebius strips and their discretization I2018
- Author(s)
  Kosuke Naokawa
- Organizer
  Mini-Workshop on Geometry and Mathematical Science
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] 波面の等長変形と実現問題について2017
- Author(s)
  直川耕祐
- Organizer
  第64回幾何学シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Isometric deformations and realizations of surfaces with non-degenerate singularities2017
- Author(s)
  K. Naokawa
- Organizer
  International workshop on differential geometric aspects of integrable systems
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197
[Presentation] Isometric deformations and realizations of surfaces with wave fronts2017
- Author(s)
  K. Naokawa
- Organizer
  The third Japanese-Spanish workshop on Differential Geometry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14197

1. ROSSMAN W. F (50284485)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. 佐治健太郎 (70451432)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results

Naokawa Kosuke 直川 耕祐

Research Projects

Research Products

Co-Researchers

Discretization of differential geometric structures of surfaces with singularitiesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Differential geometric approach to discrete surfaces

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Symmetries of cross caps2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A generalization of Zakalyukin's lemma, and symmetries of surface singularities2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Symmetries of cross caps2022

Author(s)

Journal Title

Data Source

[Journal Article] On the existence of four or more curved foldings with common creases and crease patterns2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Cuspidal edges with the same first fundamental forms along a knot2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Curved foldings with common creases and crease patterns2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Duality on generalized cuspidal edges preserving singular set images and first fundamental forms2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Isometric deformations of wave fronts at non-degenerate singular points2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Isometric realization of cross caps as formal power series and its applications2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Isometric realizations of cross caps as formal power series and its applications2018

Author(s)

Journal Title

Data Source

[Presentation] 可展面に現れるカスプ辺・燕の尾特異点の離散化2024

Author(s)

Organizer

Data Source

[Presentation] 離散可展面とその特異点について2023

Author(s)

Organizer

Data Source

[Presentation] Discrete developable surfaces and their singularities2022

Author(s)

Organizer

Data Source

[Presentation] 折り紙の曲線折りについて2021

Author(s)

Organizer

Data Source

Naokawa Kosuke 直川耕祐