Researcher List Ryo Nikkuni Ryo Nikkuni (新國 亮) Please select the form format to download from below 「Education and research environment」format 「No. 4, the Ministry of Education document style ①Outline for Vitae」format 「No. 4, the Ministry of Education document style ②Education and research environment」format Profile Information AffiliationProfessor, Department of Information and Mathematical Sciences, School of Arts and Sciences, Tokyo Woman's Christian UniversityDegreeDoctral degree in Information Sciences(Mar, 2002, Tohoku University)Researcher number00401878J-GLOBAL ID200901068608565487researchmap Member ID1000283497External linkhttp://www.lab.twcu.ac.jp/~nick/index-e.html Research Interests 3 Low-dimensioal topology Knot theory Spatial graph theory Research Areas 1 Natural sciences / Geometry / Low-dimensional topology Research History 6 Apr, 2017 - Present Professor, School of Arts and Sciences, Tokyo Woman's Christian University Apr, 2009 - Mar, 2017 Associate professor, School of Arts and Sciences, Tokyo Woman's Christian University Apr, 2008 - Mar, 2009 Associate professor, Faculty of Teacher Education, Institute of Human and Social Sciences, Kanazawa University Apr, 2007 - Mar, 2008 Associate professor, Faculty of Education, Kanazawa University Apr, 2005 - Mar, 2007 Associate professor, Faculty of Education, Kanazawa University More Education 3 Apr, 1999 - Mar, 2002 Division of Mathematics, Doctral Program, Graduate School of Information Sciences, Tohoku University Apr, 1997 - Mar, 1999 Division of Mathematics, Master Program, Graduate School of Information Sciences, Tohoku University Apr, 1993 - Mar, 1997 Department of Mathematics, College of Science, Rikkyo University Committee Memberships 11 Apr, 2026 - Mar, 2027 専門調査員, 文部科学省 科学技術・学術政策研究所 科学技術予測・政策基盤調査研究センター Jul, 2022 - Jun, 2024 国際事業委員会書面審査員・書面評価員, 日本学術振興会 Jul, 2022 - Jun, 2024 卓越研究員候補者選考委員会書面審査員, 日本学術振興会 Jul, 2022 - Jun, 2024 特別研究員等審査会専門委員, 日本学術振興会 Mar, 2023 - Nov, 2023 国際数学オリンピック(IMO)2023 実行委員, 公益財団法人 数学オリンピック財団 More Awards 2 Feb, 2024 2023年度エクセレント・ファカルティー, 東京女子大学 新國 亮 Jul, 2018 平成29年度特別研究員等審査会専門委員(書面担当)表彰, 日本学術振興会 新國 亮 Papers 41 An intrinsically linked simplicial $n$-complex Ryo Nikkuni Algebraic & Geometric Topology, to appear, 2027 Peer-reviewed Intrinsic linking of a simplicial $n$-complex embedded in $\mathbb{R}^{2n}$ Ryo Nikkuni Archiv der Mathematik, 127(2) 205-214, Aug, 2026 Peer-reviewed A short proof of the generalized Conway-Gordon-Sachs Theorem Ryo Nikkuni Journal of Knot Theory and Its Ramifications, 34(12) 2550057, Jun 27, 2025 Peer-reviewed Converses to generalized Conway-Gordon type congruences Ryo Nikkuni Tokyo Journal of Mathematics, 47(2) 353-364, Dec, 2024 Peer-reviewed Crossing numbers and rotation numbers of cycles in a plane immersed graph Ayumu Inoue, Naoki Kimura, Ryo Nikkuni, Kouki Taniyama Journal of Knot Theory and Its Ramifications, 31(11) 2250076, Aug 30, 2022 Peer-reviewed More Misc. 2 Topology of spatial graphs and their intrinsic properties Ryo Nikkuni 76(1) 1-26, Jan, 2024 Peer-reviewedInvited 空間グラフのトポロジー 新國 亮 数理科学, 617 13-19, 2014 Invited Books and Other Publications 1 空間グラフのトポロジー : Conway-Gordonの定理をめぐって 新國 亮 サイエンス社, Jul, 2022 (ISBN: 9784781915487) Presentations 58 On intrinsically linked simplicial $n$-complexes Ryo Nikkuni International Workshop on Spatial Graphs 2026, Aug 12, 2026 Invited An intrinsically linked simplicial $n$-complex Ryo Nikkuni 39th Summer Topology and Its Applications Conference, Aug 12, 2025 Invited Conway-Gordon type theorems and its applications Ryo Nikkuni Joint meeting of the NZMS, AustMS and AMS, Dec 10, 2024 Invited Capturing knots and links in spatial graphs Ryo Nikkuni Knots and Spatial Graphs 2024, Nov 7, 2024 Invited Conway--Gordon の空間7頂点完全グラフをめぐって 新國 亮 研究集会「結び目理論」, Feb 14, 2024 Invited More Professional Memberships 1 Mathematical Society of Japan Research Projects 12 空間グラフの内在的性質の研究とその応用 科学研究費助成事業, 日本学術振興会, Apr, 2025 - Mar, 2028 新國 亮 Research of the topology of spatial graphs and their intrinsic properties Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2025 Ryo Nikkuni Geometric and algebraic aspects of Dehn surgery Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2024 MOTEGI Kimihiko Research of hierarchy structures of spatial graphs and algebraic invariants Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2024 Geometric structures and combinaorial structures of 3-manifolds Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2015 - Mar, 2020 Sakuma Makoto More Social Activities 3 トポロジーの視点と発想 Lecturer 東京女子大学, 東京女子大学模擬授業 (情報数理科学科模擬授業), Jul 23, 2025 - Present ○と◇を同じと見る数学〜トポロジーの考え方 Lecturer FROMPAGE, 夢ナビライブ2012, Jul 14, 2012 紐を結んで数学を Lecturer 武蔵野市, 武蔵野地域五大学共同講演会, Nov 1, 2011 Media Coverage 1 夢みる数学 ~東京女子大学現代教養学部数理科学科編~ 講談社, Rikejo, vol. 32, pp.56--57, Feb 9, 2015 Newspaper, magazine
Ryo Nikkuni (新國 亮) Please select the form format to download from below 「Education and research environment」format 「No. 4, the Ministry of Education document style ①Outline for Vitae」format 「No. 4, the Ministry of Education document style ②Education and research environment」format Profile Information AffiliationProfessor, Department of Information and Mathematical Sciences, School of Arts and Sciences, Tokyo Woman's Christian UniversityDegreeDoctral degree in Information Sciences(Mar, 2002, Tohoku University)Researcher number00401878J-GLOBAL ID200901068608565487researchmap Member ID1000283497External linkhttp://www.lab.twcu.ac.jp/~nick/index-e.html Research Interests 3 Low-dimensioal topology Knot theory Spatial graph theory Research Areas 1 Natural sciences / Geometry / Low-dimensional topology Research History 6 Apr, 2017 - Present Professor, School of Arts and Sciences, Tokyo Woman's Christian University Apr, 2009 - Mar, 2017 Associate professor, School of Arts and Sciences, Tokyo Woman's Christian University Apr, 2008 - Mar, 2009 Associate professor, Faculty of Teacher Education, Institute of Human and Social Sciences, Kanazawa University Apr, 2007 - Mar, 2008 Associate professor, Faculty of Education, Kanazawa University Apr, 2005 - Mar, 2007 Associate professor, Faculty of Education, Kanazawa University More Education 3 Apr, 1999 - Mar, 2002 Division of Mathematics, Doctral Program, Graduate School of Information Sciences, Tohoku University Apr, 1997 - Mar, 1999 Division of Mathematics, Master Program, Graduate School of Information Sciences, Tohoku University Apr, 1993 - Mar, 1997 Department of Mathematics, College of Science, Rikkyo University Committee Memberships 11 Apr, 2026 - Mar, 2027 専門調査員, 文部科学省 科学技術・学術政策研究所 科学技術予測・政策基盤調査研究センター Jul, 2022 - Jun, 2024 国際事業委員会書面審査員・書面評価員, 日本学術振興会 Jul, 2022 - Jun, 2024 卓越研究員候補者選考委員会書面審査員, 日本学術振興会 Jul, 2022 - Jun, 2024 特別研究員等審査会専門委員, 日本学術振興会 Mar, 2023 - Nov, 2023 国際数学オリンピック(IMO)2023 実行委員, 公益財団法人 数学オリンピック財団 More Awards 2 Feb, 2024 2023年度エクセレント・ファカルティー, 東京女子大学 新國 亮 Jul, 2018 平成29年度特別研究員等審査会専門委員(書面担当)表彰, 日本学術振興会 新國 亮 Papers 41 An intrinsically linked simplicial $n$-complex Ryo Nikkuni Algebraic & Geometric Topology, to appear, 2027 Peer-reviewed Intrinsic linking of a simplicial $n$-complex embedded in $\mathbb{R}^{2n}$ Ryo Nikkuni Archiv der Mathematik, 127(2) 205-214, Aug, 2026 Peer-reviewed A short proof of the generalized Conway-Gordon-Sachs Theorem Ryo Nikkuni Journal of Knot Theory and Its Ramifications, 34(12) 2550057, Jun 27, 2025 Peer-reviewed Converses to generalized Conway-Gordon type congruences Ryo Nikkuni Tokyo Journal of Mathematics, 47(2) 353-364, Dec, 2024 Peer-reviewed Crossing numbers and rotation numbers of cycles in a plane immersed graph Ayumu Inoue, Naoki Kimura, Ryo Nikkuni, Kouki Taniyama Journal of Knot Theory and Its Ramifications, 31(11) 2250076, Aug 30, 2022 Peer-reviewed More Misc. 2 Topology of spatial graphs and their intrinsic properties Ryo Nikkuni 76(1) 1-26, Jan, 2024 Peer-reviewedInvited 空間グラフのトポロジー 新國 亮 数理科学, 617 13-19, 2014 Invited Books and Other Publications 1 空間グラフのトポロジー : Conway-Gordonの定理をめぐって 新國 亮 サイエンス社, Jul, 2022 (ISBN: 9784781915487) Presentations 58 On intrinsically linked simplicial $n$-complexes Ryo Nikkuni International Workshop on Spatial Graphs 2026, Aug 12, 2026 Invited An intrinsically linked simplicial $n$-complex Ryo Nikkuni 39th Summer Topology and Its Applications Conference, Aug 12, 2025 Invited Conway-Gordon type theorems and its applications Ryo Nikkuni Joint meeting of the NZMS, AustMS and AMS, Dec 10, 2024 Invited Capturing knots and links in spatial graphs Ryo Nikkuni Knots and Spatial Graphs 2024, Nov 7, 2024 Invited Conway--Gordon の空間7頂点完全グラフをめぐって 新國 亮 研究集会「結び目理論」, Feb 14, 2024 Invited More Professional Memberships 1 Mathematical Society of Japan Research Projects 12 空間グラフの内在的性質の研究とその応用 科学研究費助成事業, 日本学術振興会, Apr, 2025 - Mar, 2028 新國 亮 Research of the topology of spatial graphs and their intrinsic properties Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2025 Ryo Nikkuni Geometric and algebraic aspects of Dehn surgery Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2024 MOTEGI Kimihiko Research of hierarchy structures of spatial graphs and algebraic invariants Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2024 Geometric structures and combinaorial structures of 3-manifolds Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2015 - Mar, 2020 Sakuma Makoto More Social Activities 3 トポロジーの視点と発想 Lecturer 東京女子大学, 東京女子大学模擬授業 (情報数理科学科模擬授業), Jul 23, 2025 - Present ○と◇を同じと見る数学〜トポロジーの考え方 Lecturer FROMPAGE, 夢ナビライブ2012, Jul 14, 2012 紐を結んで数学を Lecturer 武蔵野市, 武蔵野地域五大学共同講演会, Nov 1, 2011 Media Coverage 1 夢みる数学 ~東京女子大学現代教養学部数理科学科編~ 講談社, Rikejo, vol. 32, pp.56--57, Feb 9, 2015 Newspaper, magazine