change language:
 

Researcher Information

This site provides you with comprehensive data regarding academic research staff at Tohoku University.
 

Information

_
 

Search

Researcher Search Results >> Motoko KOTANI
 

Motoko KOTANI

 
Avatar
NameMotoko KOTANI
URLhttp://www.wpi-aimr.tohoku.ac.jp/mathematics_unit/english/member/member_kotani.html
AffiliationTohoku University
SectionAdvanced Institute for Materials Research
Job titlePrincipal Investigator, Professor
DegreeDr.Sci
J-Global ID201101053089477541

Research Interests

 
geometric analysis ,discrete geometry ,グラフ ,離散幾何解析 ,距離空間 ,グロモフ・ハウスドルフ収束 ,スペクトル ,離散群 ,ランダムウォーク ,調和写像 ,結晶格子

Research Areas

 
  • Natural sciences / Geometry / discrete geometry, geometric analsis
  • Natural sciences / Mathematical analysis / 
  • Natural sciences / Geometry / 

Research History

 
2004
 - 
2009
Tohoku University Graduate School of Science  
 
1999
 - 
2004
Tohoku University Graduate School of Science  
 

Awards

 
May 2005
Saruhashi Prize
Motoko KOTANI 
 
2005
第25回猿橋賞
小谷元子 
 

Papers

 
 
Kazutoshi Inoue   Ji-Young Roh   Kazuaki Kawahara   Mitsuhiro Saito   Motoko Kotani   Yuichi Ikuhara   
Acta Materialia   212 116864-116864   Jun 2021
 
Andreas Dechant   Tatsuhiko Ohto   Yoshikazu Ito   Marina V. Makarova   Yusuke Kawabe   Tatsufumi Agari   Hikaru Kumai   Yasufumi Takahashi   Hisashi Naito   Motoko Kotani   
Carbon   182 223-232   Jun 2021   [Refereed]
Geometric structures of carbon networks are key in designing their material properties. In particular, optimization of curved structures through the introduction of topological defects and doping of heteroatoms in the lattice is crucial to the des...
 
Motoko Kotani   Hisashi Naito   Chen Tao   
Tohoku Mathematical Journal      Dec 2020   [Refereed]
 
Kazutoshi Inoue   Kazuaki Kawahara   Mitsuhiro Saito   Motoko Kotani   Yuichi Ikuhara   
Acta Materialia   202 266-276   Oct 2020   [Refereed]
Polycrystalline materials have been used throughout the recorded history, and their macroscopic properties strongly depend on the defects in their crystalline structures. Unique properties of the grain boundaries (GBs) should result from nearby na...
 
Koki Ikemoto   Seungmin Yang   Hisashi Naito   Motoko Kotani   Sota Sato   Hiroyuki Isobe   
Nature Communications   11(1)    Mar 2020   [Refereed]
<title>Abstract</title>Nitrogen-doped carbon nanotubes have attracted attention in various fields, but lack of congeners with discrete molecular structures has hampered developments based on in-depth, chemical understandings. In this study, a nano...

Misc.

 
 
小谷 元子   
週刊ダイヤモンド = Diamond weekly   107(14) 66-67   Apr 2019   
 
小谷 元子   
週刊ダイヤモンド = Diamond weekly   107(7) 70-71   Feb 2019   
 
小谷 元子   
週刊ダイヤモンド = Diamond weekly   106(48) 74-75   Dec 2018   
 
小谷 元子   
数学通信   23(3) 28-33   Nov 2018   
 
小谷 元子   
週刊ダイヤモンド = Diamond weekly   106(41) 84-85   Oct 2018   

Books and Other Publications

 
 
坂井, 裕, 小谷, 元子
教育出版   2020   (ISBN:9784316204383)
 
泉, 正己, 河東, 泰之, 小谷, 元子, 松井, 宏樹, 小沢, 登高
Mathematical Society of Japan   2019   (ISBN:9784864970792)
 
前田, 吉昭, 森吉, 仁志, 小谷, 元子, 綿村, 哲
World Scientific   2017   (ISBN:9789813144606)   
 
室井 芳史, 照井 伸彦, 小谷 元子, 赤間 陽二, 花輪 公雄
共立出版   2017   (ISBN:9784320111226)   
 
Nishiura Yasumasa, 小谷 元子
Springer   2016   (ISBN:9784431561026)   

Presentations

 
 
Motoko Kotani   
The World of Mathematical Physics II   21 Nov 2021   [Invited]
 
 
Motoko Kotani   
14 Mar 2021   [Invited]
 
Motoko Kotani   
4 Dec 2020   [Invited]
 
KOTANI Motoko   
26 Sep 2020   [Invited]

Professional Memberships

 
 
   
 
日本応用数理学会
 
   
 
日本数学会

Other

 
 
ミクロな幾何構造がマクロな現象を制御する仕組みを離散幾何解析学の立場で理解する
 
 
磁場付き推移作用素をC*環の元とみることで,スペクトル集合の代数的構造や,自己相似性を解析する.