An upper bound for the Frobenius number and stretched numerical semigroups, 第45回可換環論シンポジウム, 京都, 2024年11月21日. (衛藤和文,沼田崇宏,渡辺敬一との共同講演)
Numerical semigroup rings - A foundation of combinatorial perspective on commutative algebra, Interactions of Commutative Algebra, Representation Theory, and Combinatorics in Bangkok, Bangkok (Thailand), 2024年10月30日.
Nearly Gorenstein local rings defined by maximal minors of a $2 \times n$ matrix , International Meeting on Numerical Semigroups 2024, Jerez de la Frontera, 2024年7月11日.
1次元解析を基盤とした局所環論, 第68回代数学シンポジウム, 名古屋, 2023年8月30日.
Numerical semigroup rings with determinantal defining ideals, One day workshop on Commutative Algebra, 東京, 2023年2月6日
Ulrich ideals in numerical semigroup rings
, 東京可換環論セミナー, オンライン, 2021年10月12日.
Efficient generation of ideals in core subalgebras of the polynomial ring $k[t]$ over a field $k$
, The 8th China–Japan–Korea International Symposium on Ring Theory, 名古屋 2019年8月27日.
The GGL property of numerical semigroup rings obtained by gluing
, The 10th Japan-Vietnam Joint Seminar on Commutative Algebra, Hanoi (Vietnam) 2018年9月11日.
The generalized Gorenstein property and numercal semigroup rings obtained by gluing
, INdAM meeting : international meeting on numerical semigroups, Cortona (Italy), 2018年9月6日
Pseudo-Frobenius numbers versus defining ideals in numerical semigroup rings
, 第39回可換環論シンポジウム, 京都, 2017年11月.
Pseudo-Frobenius numbers versus defining ideals in numerical semigroup rings
, International Conference on Commutative Algebra and its Interactions to Combinatorics, Discrete Geometry and Singularity Theory, Hanoi (Vietnam), 2017年9月.
Pseudo-Frobenius numbers and the generation of the defining ideal
, 第28可換環論セミナー, 山口, 2017年2月.
The minimal free resolution of a numerical semigroup ring with arithmetic pseudo-Frobenius numbers of type 3
, Japan-Vietnam Workshop on Commutative Algebra, 2016 -by and for young mathematicians-, 川崎, 2016年9月.
On the almost Gorenstein property in Rees algebras of contracted ideals
, The 8th Japan-Vietnam Joint Seminar on Commutative Algebra, Hanoi (Vietnam), 2016年3月.
The almost Gorenstein Rees algebras of contracted ideals
, 2016年日本数学会年会, つくば, 2016年3月. (後藤四郎, 谷口直樹, 吉田健一 との共同講演)
Minimal free resolutions of certain almost Gorenstein numerical semigroup rings
, Workshop on Commutative Algebra, Ha Long (Vietnam), 2016年1月.
The almost Gorenstenness of Rees algebras of contracted ideals in 2-dimensional regular local rings
, The JV Seminar on Commutative Algebra - by and for young mathematicians -, 川崎, 2015年9月.
The almost Gorenstein Rees algebras of socle ideals
, 2015年日本数学会秋季年会, 京都, 2015年9月. (後藤四郎, 谷口直樹, 吉田健一との共同講演)
Ratliff-Rush closures of certain 2-dimensional monomial ideals and Buchsbaumness of its Rees algebras
, Nebraska Commutative Algebra Conference: WiegandFest, Nebraska (USA), 2005年5月.