Organization
Undergraduate School School of Political Science and Economics Senior Assistant Professor
Title
Senior Assistant Professor
Homepage
Other name(s)
(旧姓) 谷口 直樹 2019年2月改姓
External link
ENDO NAOKI
Degree
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Ph.D. (Science) ( 2016.3 Meiji University )
Research Interests
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Algebra
Research Areas
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Natural sciences / Algebra / Commutative Algebra
Education
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Meiji University Graduate School of Science and Technology Department of Mathematics
2014.4 - 2016.3
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Meiji University Graduate School of Science and Technology Department of Mathematics
2012.4 - 2014.3
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Meiji University School of Science and Technology Department of Mathematics
2008.4 - 2012.3
Research History
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Meiji University School of Political Science and Economics Senior Assistant Professor
2022.4
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Tokyo University of Science Faculty of Science, Division 2 Mathematics Junior Associate Professor
2021.4 - 2022.3
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Purdue University Department of Mathematics Visiting Scholar（日本学術振興会 海外特別研究員）
2020.2 - 2021.3
Country/Region：United States
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Waseda University Global Education Center Assistant Professor
2018.4 - 2020.2
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Waseda University Global Education Center Assistant Professor
2017.9 - 2018.3
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Meiji University School of Science and Technology Assistant Professor
2016.4 - 2017.9
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Japan Society for the Promotion of Scinence JSPS Research Fellow for Young Scientists DC1
2014.4 - 2016.3
Professional Memberships
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Mathematics Education Society of Waseda University
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The Mathematical Society of Japan
Papers
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405Rings with <i>q</i> -torsionfree canonical modules
Naoki Endo, Laura Ghezzi, Shiro Goto, Jooyoun Hong, Shin-ichiro Iai, Toshinori Kobayashi, Naoyuki Matsuoka, Ryo Takahashi
Commutative Algebra 405 - 426 2025.9
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Ulrich ideals in the ring k[[t5,t11]]
Naoki Endo, Shiro Goto, Shin-ichiro Iai, Naoyuki Matsuoka
International Journal of Algebra and Computation 34 ( 03 ) 351 - 369 2024.5
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Remarks on almost Gorenstein rings
Naoki Endo, Naoyuki Matsuoka
Communications in Algebra 52 ( 7 ) 2884 - 2891 2024
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ON THE WEAKLY ARF (S2)-IFICATIONS OF NOETHERIAN RINGS
Naoki Endo, Shiro Goto, Shin-ichiro Iai, Naoyuki Matsuoka
Journal of Commutative Algebra 15 ( 3 ) 2023.9
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ON THE UBIQUITY OF ARF RINGS
Ela Celikbas, Olgur Celikbas, Cătălin Ciupercă, Naoki Endo, Shiro Goto, Ryotaro Isobe, Naoyuki Matsuoka
Journal of Commutative Algebra 15 ( 2 ) 2023.6
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When are the rings <i>I:I</i> Gorenstein?
Naoki Endo, Shiro Goto, Shin-ichiro Iai, Naoyuki Matsuoka
Communications in Algebra 51 ( 4 ) 1721 - 1734 2022.11
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CONSTRUCTION of STRICTLY CLOSED RINGS Reviewed
Naoki Endo, Shiro Goto
Proceedings of the American Mathematical Society 150 ( 1 ) 119 - 129 2022
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Ulrich ideals in numerical semigroup rings of small multiplicity Reviewed
Naoki Endo, Shiro Goto
Journal of Algebra 611 435 - 479 2022
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Topics on strict closure of rings Reviewed
Naoki Endo, Shiro Goto, Ryotaro Isobe
RESEARCH IN THE MATHEMATICAL SCIENCES 8 ( 4 ) 2021.12
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Almost Gorenstein rings arising from fiber products Reviewed
Naoki Endo, Shiro Goto, Ryotaro Isobe
Canadian Mathematical Bulletin 64 ( 2 ) 383 - 400 2021.6
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A study of quasi-Gorenstein rings II: Deformation of quasi-Gorenstein property Reviewed
Kazuma Shimomoto, Naoki Taniguchi, Ehsan Tavanfar
Journal of Algebra 562 368 - 389 2020.11
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Ulrich ideals and 2-AGL rings Reviewed
Shiro Goto, Ryotaro Isobe, Naoki Taniguchi
Journal of Algebra 555 96 - 130 2020.8
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EFFICIENT GENERATION OF IDEALS IN CORE SUBALGEBRAS OF THE POLYNOMIAL RING k[t] OVER A FIELD k Reviewed
Naoki Endo, Shiro Goto, Naoyuki Matsuoka, Yuki Yamamoto
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY 148 ( 8 ) 3283 - 3292 2020.8
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On the Ideal Case of a Conjecture of Huneke and Wiegand Reviewed
Olgur Celikbas, Shiro Goto, Ryo Takahashi, Naoki Taniguchi
Proceedings of the Edinburgh Mathematical Society 62 ( 3 ) 847 - 859 2019.8
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On the almost Gorenstein property in the Rees algebras of contracted ideals Reviewed
Shiro Goto, Naoyuki Matsuoka, Naoki Taniguchi, Ken ichi Yoshida
Kyoto Journal of Mathematics 59 ( 4 ) 769 - 785 2019
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Generalized gorenstein arf rings Reviewed
Ela Celikbas, Olgur Celikbas, Shiro Goto, Naoki Taniguchi
Arkiv for Matematik 57 ( 1 ) 35 - 53 2019
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On Modules with Reducible Complexity Reviewed
Olgur Celikbas, Arash Sadeghi, Naoki Taniguchi
Algebras and Representation Theory 2019
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On the almost Gorenstein property of determinantal rings Reviewed
Naoki Taniguchi
Communications in Algebra 46 ( 3 ) 1165 - 1178 2018.3
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Almost Gorenstein Rees algebras of p<inf>g</inf>-ideals, good ideals, and powers of the maximal ideals Reviewed
Shiro Goto, Naoyuki Matsuoka, Naoki Taniguchi, Ken Ichi Yoshida
Michigan Mathematical Journal 67 ( 1 ) 159 - 174 2018.3
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Topics on sequentially Cohen-Macaulay modules Reviewed
Naoki Taniguchi, Tran Thi Phuong, Nguyen Thi Dung, Tran Nguyen An
Journal of Commutative Algebra 10 ( 2 ) 295 - 304 2018
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When are the Rees algebras of parameter ideals almost Gorenstein graded rings? Reviewed
Shiro Goto, Mehran Rahimi, Naoki Taniguchi, Hoang Le Truong
Kyoto Journal of Mathematics 57 ( 3 ) 655 - 666 2017.9
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Sequentially Cohen-Macaulay Rees algebras Reviewed
Naoki Taniguchi, Tran Thi Phuong, Nguyen Thi Dung, Tran Nguyen An
Journal of the Mathematical Society of Japan 69 ( 1 ) 293 - 309 2017
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The almost Gorenstein Rees algebras over two-dimensional regular local rings Reviewed
Shiro Goto, Naoyuki Matsuoka, Naoki Taniguchi, Ken ichi Yoshida
Journal of Pure and Applied Algebra 220 ( 10 ) 3425 - 3436 2016.10
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Ulrich ideals and almost gorenstein rings Reviewed
Shiro Goto, Ryo Takahashi, Naoki Taniguchi
Proceedings of the American Mathematical Society 144 ( 7 ) 2811 - 2823 2016.7
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The almost Gorenstein Rees algebras of parameters Reviewed
Shiro Goto, Naoyuki Matsuoka, Naoki Taniguchi, Ken ichi Yoshida
Journal of Algebra 452 263 - 278 2016.4
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Almost Gorenstein rings - towards a theory of higher dimension Reviewed
Shiro Goto, Ryo Takahashi, Naoki Taniguchi
Journal of Pure and Applied Algebra 219 ( 7 ) 2666 - 2712 2015.7
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Bounds for the First Hilbert coefficients of m-primary ideals Reviewed
Asuki Koura, Naoki Taniguchi, K. Ahara
Tokyo Journal of Mathematics 38 ( 1 ) 125 - 133 2015.6
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Huneke-Wiegand conjecture and change of rings Reviewed
Shiro Goto, Ryo Takahashi, Naoki Taniguchi, Hoang Le Truong
Journal of Algebra 422 33 - 52 2015.1
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TOPICS ON SEQUENTIALLY COHEN-MACAULAY MODULES Reviewed
Naoki Taniguchi, Tran Thi Phuong, Nguyen Thi Dung, Tran Nguyen An
JOURNAL OF COMMUTATIVE ALGEBRA 10 ( 2 ) 295 - 304 1970.1
Presentations
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On the ideal case of a conjecture of Huneke and Wiegand International conference
TANIGUCHI, Naoki
The 10th Japan-Vietnam Joint seminar on Commutative Algebra 2018.9
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Canonical Koszul cycles Invited
TANIGUCHI, Naoki
The 15th Summer School on Commutative Algebra 2018.8
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Ordinary and symbolic powers are Golod Invited
TANIGUCHI, Naoki
The 15th Summer School on Commutative Algebra 2018.8
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Huneke-Wiegand conjecture and weakly m-full ideals
TANIGUCHI, Naoki
Monday seminar on Singularity theory 2018.7
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Huneke-Wiegand conjecture and weakly m-full ideals
TANIGUCHI, Naoki
The 31th seminar on Commutative Algebra 2018.6
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Depth formula and modules with reducible complexity
TANIGUCHI, Naoki
Mini-workshop on Commutative Algebra 2018.3
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Almost Gorenstein rings Invited
TANIGUCHI, Naoki
Colloquium at West Virginia University 2018.3
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On Ratliff-Rush closure of modules Invited International conference
TANIGUCHI, Naoki
AMS Meeting Special Session on Homological Algebra 2018.3
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Characterization of Generalized Gorenstein rings
GOTO, Shiro, ISOBE, Ryotaro, KUMASHIRO, Shinya, TANIGUCHI, Naoki
2018.3
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Rees algebras of modules
TANIGUCHI, Naoki
Monday seminar on Singularity theory 2018.2
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Rees algebras of modules Invited International conference
TANIGUCHI, Naoki
International School and Workshop on Commutative Algebra -by and for young mathematicians- 2018.1
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On Ratliff-Rush closure of modules
TANIGUCHI, Naoki
The 30th seminar on Commutative Algebra 2018.1
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On Ratliff-Rush closure of modules International conference
TANIGUCHI, Naoki
The 39th Symposium on Commutative Algebra 2017.11
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Generalized Gorenstein Arf rings Invited International conference
TANIGUCHI, Naoki
International School and Workshop on Commutative Algebra -by and for young mathematicians- 2017.9
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On Ratliff-Rush closure of modules Invited
TANIGUCHI, Naoki
The 17th Okayama Seminar on Commutative Algebra and Representations 2017.6
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On Ratliff-Rush closure of modules
TANIGUCHI, Naoki
Meiji University Commutative Algebra seminar 2017.4
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On the almost Gorenstein property of determinantal rings
TANIGUCHI, Naoki
2017.3
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Almost Gorenstein rings of higher dimension
TANIGUCHI, Naoki
Monday seminar on Singularity theory 2017.3
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On the almost Gorenstein property of determinantal rings
TANIGUCHI, Naoki
The 29th seminar on Commutative Algebra 2017.2
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Almost Gorenstein determinantal rings Invited International conference
TANIGUCHI, Naoki
International Workshop on Commutative Algebra at Thai Nguyen University of Science 2017.1
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On the almost Gorenstein property of determinantal rings International conference
TANIGUCHI, Naoki
The 38th Symposium on Commutative Algebra 2016.11
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Almost Gorenstein rings Invited International conference
TANIGUCHI, Naoki
The 61th Algebra Symposium 2016.9
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On the almost Gorenstein property of determinantal rings Invited International conference
TANIGUCHI, Naoki
Japan-Vietnam Workshop on Commutative Algebra, 2016 – by and for young mathematicians –, Local rings, Combinatorics, and Representation Theory 2016.9
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Almost Gorenstein rings Invited
TANIGUCHI, Naoki
The 18th Yamato Koriyama seminar 2016.5
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The almost Gorenstein Rees algebras of contracted ideals
GOTO, Shiro, MATSUOKA, Naoyuki, TANIGUCHI, Naoki, YOSHIDA, Ken-ichi
2016.3
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The almost Gorenstein Rees algebras of contracted ideals
GOTO, Shiro, MATSUOKA, Naoyuki, TANIGUCHI, Naoki, YOSHIDA, Ken-ichi
The 28th seminar on Commutative Algebra 2016.1
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Ulrich ideals and almost Gorenstein rings Invited
TANIGUCHI, Naoki
The 28th seminar on Commutative Algebra 2016.1
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Almost Gorenstein homogeneous rings Invited
TANIGUCHI, Naoki
Ring Theory and Representation Theory Seminar 2015.12
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Almost Gorenstein rings Invited
TANIGUCHI, Naoki
The 2nd Gröbner seminar 2015.11
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The almost Gorenstein Rees algebras of socle ideals International conference
GOTO, Shiro, MATSUOKA, Naoyuki, TANIGUCHI, Naoki, YOSHIDA, Ken-ichi
The 37th Symposium on Commutative Algebra 2015.11
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Almost Gorenstein Rees algebras of some integrally closed ideals International conference
YOSHIDA, Ken-ichi, GOTO, Shiro, TANIGUCHI, Naoki, MATSUOKA, Naoyuki
The 37th Symposium on Commutative Algebra 2015.11
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2次元正規特異点のpg-idealのRees代数のAlmostGorenstein性
YOSHIDA, Ken-ichi, GOTO, Shiro, TANIGUCHI, Naoki
2015.9
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The almost Gorenstein Rees algebras of parameters Invited International conference
TANIGUCHI, Naoki
The JV seminar on Commutative Algebra –by and for young mathematicians– 2015.9
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Determinantal ideals and the straightening law (3) Invited
TANIGUCHI, Naoki
The 12th Summer School on Commutative Algebra 2015.9
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Determinantal ideals and the straightening law (2) Invited
TANIGUCHI, Naoki
The 12th Summer School on Commutative Algebra 2015.9
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Determinantal ideals and the straightening law (1) Invited
TANIGUCHI, Naoki
The 12th Summer School on Commutative Algebra 2015.9
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The almost Gorenstein Rees algebras of socle ideals
GOTO, Shiro, MATSUOKA, Naoyuki, TANIGUCHI, Naoki, YOSHIDA, Ken-ichi
2015.9
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Almost Gorenstein Rees algebras International conference
YOSHIDA, Ken-ichi, GOTO, Shiro, TANIGUCHI, Naoki, MATSUOKA, Naoyuki
The 48th Symposium on Ring Theory and Representation Theory 2015.9
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The almost Gorenstein Rees algebras of socle ideals Invited
TANIGUCHI, Naoki
The 10th Okayama Seminar on Commutative Algebra and Representations 2015.8
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The almost Gorenstein property of the Rees algebras of socle ideals
TANIGUCHI, Naoki
Meiji University Commutative Algebra seminar 2015.5
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Almost Gorenstein rings of higher dimension Invited International conference
TANIGUCHI, Naoki
AMS Meeting Special Session on Algebra and Representation Theory 2015.3
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Huneke-Wiegand conjecture and change of rings Invited
TANIGUCHI, Naoki
Algebra-number theory seminar at University of Connecticut 2015.3
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Ulrich ideals of dimension one Invited
TANIGUCHI, Naoki
Commutative Algebra Seminar at University of Connecticut 2015.3
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Sequentially Cohen-Macaulay Rees modules
TANIGUCHI, Naoki
2015.3
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Sequentially Cohen-Macaulay Rees modules
TANIGUCHI, Naoki
The 27th seminar on Commutative Algebra 2015.1
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Sequentially Cohen-Macaulay Rees modules International conference
TANIGUCHI, Naoki
The 36th Symposium on Commutative Algebra 2014.11
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Sequentially Cohen-Macaulay Rees modules
TANIGUCHI, Naoki
Commutative Algebra seminar at Purdue University 2014.10
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Matlis duality and local duality (1) Invited
TANIGUCHI, Naoki
The 11th Summer School on Commutative Algebra 2014.9
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Matlis duality and local duality (3) Invited
TANIGUCHI, Naoki
The 11th Summer School on Commutative Algebra 2014.9
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Matlis duality and local duality (2) Invited
TANIGUCHI, Naoki
The 11th Summer School on Commutative Algebra 2014.9
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Sequentially Cohen-Macaulay Rees modules
TANIGUCHI, Naoki
Meiji University Commutative Algebra seminar 2014.6
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Huneke-Wiegand conjecture and change of rings
GOTO, Shiro, TAKAHASHI, Ryo, TANIGUCHI, Naoki, HOANG, Le, Truong
2014.3
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The almost Gorenstein property of associated graded rings
TANIGUCHI, Naoki
2014.2
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The almost Gorenstein property of associated graded rings
TANIGUCHI, Naoki
The 26th seminar on Commutative Algebra 2014.1
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Huneke-Wiegand conjecture of rank one with the change of rings International conference
GOTO, Shiro, TAKAHASHI, Ryo, TANIGUCHI, Naoki, HOANG, Le, Truong
The 35th Symposium on Commutative Algebra 2013.12
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Characterizations of Buchsbaum modules by system of parameters (part1) Invited
TANIGUCHI, Naoki
The 10th Summer School on Commutative Algebra 2013.9
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Characterizations of Buchsbaum modules by system of parameters (part2) Invited
TANIGUCHI, Naoki
The 10th Summer School on Commutative Algebra 2013.9
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Huneke-Wiegand Conjecture
TANIGUCHI, Naoki
2013.3
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Huneke-Wiegand Conjecture
TANIGUCHI, Naoki
The 25th seminar on Commutative Algebra 2013.1
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Ulrich ideals of dimension one International conference
TANIGUCHI, Naoki
The 34th Symposium on Commutative Algebra 2012.11
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On graded rings I Chapter 2 Invited
TANIGUCHI, Naoki
The 9th Summer School on Commutative Algebra 2012.9
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On graded rings I Chapter 3 Invited
TANIGUCHI, Naoki
The 9th Summer School on Commutative Algebra 2012.9
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1次元局所環のm-準素イデアルのHilbert係数
TANIGUCHI, Naoki
2012.3
Research Projects
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Towards the theory of Arf rings of higher dimension
Grant number：23K03058 2023.4 - 2026.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）
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Stratification of Cohen-Macaulay rings Research Project
2020.4 - 2023.3
Japan Society for the Promotion of Science
ENDO, Naoki
Authorship：Principal investigator
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Huneke-Wiegand予想の解析
2019.4 - 2020.3
早稲田大学 特定課題研究助成費
遠藤 直樹
Authorship：Principal investigator Grant type：Competitive
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Study of almost Gorenstein rings and Rees algebras
2019.4 - 2020.2
Waseda University Waseda University Grant for Special Research Projects
ENDO, Naoki
Authorship：Principal investigator
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Study of Buchsbaum property for Rees algebras of modules
2018.4 - 2019.3
Waseda University Waseda University Grant for Special Research Projects
TANIGUCHI, Naoki
Grant type：Competitive
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Study of almost Gorenstein property for Rees algebras of modules
2018.4 - 2019.3
Waseda University Waseda University Grant for Special Research Projects
TANIGUCHI, Naoki
Grant type：Competitive
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Development of the theory of almost Gorenstein rings
2017.4 - 2020.3
Japan Society for the Promotion of Science Grant-in-Aid for Young Scientists (B)
TANIGUCHI, Naoki
Grant type：Competitive
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Commutative ring theory : Study of Ulrich modules and Ulrich ideals
2014.4 - 2016.3
Japan Society for the Promotion of Science Grant-in-Aid for JSPS Fellows
TANIGUCHI, Naoki
Grant type：Competitive
Teaching Experience
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Algebra (3-B)
2021.4 Institution：Tokyo University of Science
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Algebra (3-A)
2021.4 Institution：Tokyo University of Science
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Algebra (1)
2021.4 Institution：Tokyo University of Science
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Advanced Algebra B
2021.4 Institution：Tokyo University of Science
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Advanced Algebra A
2021.4 Institution：Tokyo University of Science
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応用数理概論1
Institution：明治大学
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数学基礎プラスα金利編
Institution：早稲田大学
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線型代数学1
Institution：明治大学
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基礎線形代数1
Institution：明治大学
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基礎微分積分2
Institution：明治大学
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数学基礎プラスγ解析学編
Institution：早稲田大学
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数学基礎プラスβ最適化編
Institution：早稲田大学
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数学基礎プラスα最適化編
Institution：早稲田大学
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数学基礎プラスγ線形代数学編
Institution：早稲田大学
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数学基礎プラスβ金利編
Institution：早稲田大学
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基礎微分積分1
Institution：明治大学