Wataru KAI's web page 

甲斐 亘のホームページ



This cover photo was taken at IIT Delhi in 2017 on a private trip.

I am currently an Assistant Professor at Mathematical Institute, Tohoku University [東北大学数学専攻],

Aza-Aoba 6-3, Sendai 980-8578, Japan.  

I'm not an Associate Professor so I can't supervise a graduate student!

Right now (until March 2024) I'm in Milan, Italy.

e-mail: kaiw(a)tohoku.ac.jp

講義等 (Teaching): click the underlined text.



News

March 2024: new preprint

"Equi-dimensionalization via subdivision of simplices"

https://arxiv.org/abs/2403.03062

June 2023: New preprint
"Linear patterns of prime elements in number fields"
https://arxiv.org/abs/2306.16983

3/4/2023: Video recording of my latest 20 minutes talk
"The Green-Tao theorem for number fields (and beyond)"
in Edinburgh is available at:

https://www.youtube.com/playlist?list=PLUbgZHsSoMEWd-QIL5igkHaAEw-k0FQxY


27/09/2022: New preprint
"Notes on Mitsui's Prime Number Theorem with Siegel zeros"
https://arxiv.org/abs/2209.11816


29/03/2022: From now on, I will be staying at University of Milan until March 2024 by JSPS funding.

Photo: April 2022, 

Lake Maggiore, Italy

Publications

[Preprints]


[Published Articles]


[Survey]



Some recent 

conference and seminar talks

See here for an almost comprehensive list of talks



  • 2023 Mar 9: Gauge Fields in Arithmetic, Topology & Physics (20 minutes)
https://www.icms.org.uk/GaugeFields
video https://www.youtube.com/playlist?list=PLUbgZHsSoMEWd-QIL5igkHaAEw-k0FQxY
      • 2022 Dec 16: Arithmetic Geometry Seminar, University of Milan
http://users.mat.unimi.it/users/SGA/
Whiteboards on Miro / PDF (sorry for the poor resolution) Whiteboards for Part I / Whiteboards for Part II

Events (co)organized

Other services

Events and institutions visited since 2018

2024:

New Directions in Rational Points (7-12 Jan.)

https://www.birs.ca/events/2024/5-day-workshops/24w4002

2023

Algebraic Number Theory and Related Topics 2023 (11-15 Dec.) https://sites.google.com/view/rims-ant2023/

Haramura 2023 (6-10 Sep.)
http://www.lcv.ne.jp/~smaki/en/yatsugatakeWS/index.html


A Festival Remembering Victor Snaith: Topology, Number Theory and Interaction (July)

https://heilbronn.ac.uk/2022/07/25/remembering-vic-snaith/

Random Matrices from Quantum Chaos to the Riemann Zeta Function
- A Celebration in Honour of Jon Keating’s 60th Birthday

https://web-eur.cvent.com/event/0c99dff3-c047-4cd1-b82a-dba87f804733/summary?RefId=BristolMathsResearch

Gruppen und topologische Gruppen
https://www.gtgconference.eu/Next.html


A Panorama of Homotopy Theory --- A Conference in Honour of Mike Hopkins (June)

https://www.maths.ox.ac.uk/groups/topology/panorama-homotopy-theory

Gauge Fields in Arithmetic, Topology & Physics. (Mar)

https://www.icms.org.uk/GaugeFields

Motives in Tokyo (Feb)

2022: Harnessing motivic invariants (Essen)

The University of Milan (03.2022--03.2024)

2021: Algebraic Number Theory and Related Topics, Kyoto University RIMS (12.2021)

2020:  The University of Milan (03.2020)

2019: NCMW - The Bloch-Kato conjecture (IISER Pune, India) 

TIFR, Mumbai, India (19.12.2019--17.01.2020)  

Motives in Tokyo

Asia-Australia Algebra Conference, Sydney

2018: Haramura Workshop 2018  

Voevodsky Memorial 

Motives in St. Petersburg (1st week) 

Motivic homotopy theory and enumerative geometry (Essen) 

Motives in Tokyo 2018 (Shuji Saito 60)

LinkedIn: linkedin.com/in/wataru-kai-6084542b

ORCID: https://orcid.org/0000-0002-4920-8043

科研費データベース: https://nrid.nii.ac.jp/ja/nrid/1000000804296/

若手研究「数体における加法的整数論」2022-2026 (合計416万円 = approx. 27,000 USD in total)
JSPS KAKENHI grant JP22K13886

若手研究「モジュラス付きChern類と代数的サイクルの高次の構造」2018-2023 (合計315万円 = approx. 20,000 USD in total)
JSPS KAKENHI grant JP18K13382

JSPS海外特別研究員: https://www.jsps.go.jp/j-ab/ab_list/list_r2.html