Educe University Faculty Information

Present specialized field
Academic background
Business career
Book and thesis
Academic conference presentation
Main Subject
Developed teaching materials, textbooks, reference books

（Last updated : 2025-03-07 15:18:35）

TAGAMI Keiji
Hiroshima shudo University The Faculty of Economic Sciences

Associate Professor

■ Present specialized field

●Specialized field
Geometry
●Keyword
●The main research themes
●Capable of joint research and research consultation content

■ Academic background

1.	～2010/03	Tokyo Institute of Technology Faculty of Science Graduated
2.	～2012/03	Tokyo Institute of Technology 〔Master degree program〕 Completed
3.	～2015/03	Tokyo Institute of Technology 〔Doctoral course〕 Completed

■ Business career

1.	2013/04～2015/03	Special researcher of the Japan Society for the Promotion of Science
2.	2015/04～2016/03	Special researcher of the Japan Society for the Promotion of Science
3.	2022/04～	Hiroshima shudo University The Faculty of Economic Sciences Associate Professor

■ Book and thesis

1.	Thesis	Flat plumbing basket, self-linking number and Thurston-Bennequin number (Single) 2025/03
2.	Thesis	On annulus presentations, dualizable patterns and RGB-diagrams (Single) 2024/08
3.	Thesis	A proposal for a method finding crowded places on public transportation networks in Hiroshima City via random walks (Single) 2024/03
4.	Thesis	Remarks on the minimalities of two-bridge knots in the ribbon concordance poset (Single) 2023/11
5.	Thesis	An alternative proof for the minimality of strongly quasi-positive fibered knots in the ribbon concordance poset (Single) 2023/08
6.	Thesis	A generalization of the slice-ribbon conjecture for two-bridge knots and t_n-move (Collaboration) 2023/03
7.	Thesis	Notes on constructions of knots with the same trace (Single) 2022/03
8.	Thesis	Knots with infinitely many non-characterizing slopes (Collaboration) 2021/10
9.	Thesis	A note on stabilization heights of fiber surfaces and the Hopf invariants (Single) 2021/09
10.	Thesis	Annulus presentation and dualizable pattern (Single) 2021/05
11.	Thesis	Flat plumbing basket and contact structure (Collaboration) 2021/03
12.	Thesis	On the Lagrangian fillability of almost positive links (Single) 2019/05
13.	Thesis	Characterization of Positive Links and the s-invariant for Links (Collaboration) 2017/12
14.	Thesis	On the maximal degree of the Khovanov homology (Single) 2016/07
15.	Thesis	Fibered knots with the same 0-surgery and the slice-ribbon conjecture (Collaboration) 2016/06
16.	Thesis	Bar-Natan’s geometric complex and Dye-Kauffman-Manturov’s categorification (Single) 2015/11
17.	Thesis	Addendum to "Fibered knots with the same 0-surgery and the slice-ribbon conjecture" (Collaboration) 2015/05
18.	Thesis	The Rasmussen invariant, four-genus and three-genus of an almost positive knot are equal (Single) 2014/11
19.	Thesis	The behavior of the maximal degree of the Khovanov homology under twisting (Single) 2014/04
20.	Thesis	A Khovanov type invariant derived from an unoriented HQFT for links in thickened surfaces (Single) 2013/10
21.	Thesis	The maximal degree of the Khovanov homology of a cable link (Single) 2013/07
22.	Thesis	Unoriented HQFT and its underlying algebra (Single) 2012/02
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■ Academic conference presentation

1.	2021/05	Annulus presentation and dualizable pattern (Intelligence of Low-dimensional Topology)
2.	2015/05	Fibered knots with the same 0-surgery and the slice-ribbon conjecture (Intelligence of Low-dimensional Topology)
3.	2013/09	Rasmussen invariants of almost positive knots (Mini workshop on knot concordance)
4.	2013/01	HQFT and Khovanov homology for link diagrams on surfaces (the 9th East Asian School of Knots and Related Topics)

■ Developed teaching materials, textbooks, reference books

1.	2023/04 Contribution Type : 単著
2.	2023/04 Contribution Type : 単著
3.	2023/04 Contribution Type : 単著
4.	2023/04 Contribution Type : 単著