Invitation to Inter-universal Teichmüller theory (IUT),
RIMS workshop, August 31 - September 3 2021

Organizers: Shinichi Mochizuki (RIMS), Yuichiro Hoshi (RIMS), Ivan Fesenko (Univ. Nottingham), Yuichiro Taguchi (Titech), Benjamin Collas (RIMS/Univ. Lille)

Notes and recordings of the workshop

Original IUT papers: [IUTchI], [IUTchII], [IUTchIII], [IUTchIV].
Preparatory papers: [FrdI], [FrdII], [EtTh], [AbsTopIII].
Note that access to the videos is provided upon registration (see below).
August 31 (Tuesday)
Yuichiro Hoshi & Shinichi MochizukiOpening words
Shota TsujimuraModel Frobenioids
Shinichi Mochizuki On the essential logical structure of inter-universal Teichmüller theory I, II, and III [Marked up version], [Notes], [Alien], [EssLgc], [ClsIUT], [ClsIUT] (marked up version), [IUAni1], [IUAni2].   
Sept. 1 (Wednesday)
Shota Tsujimura Cyclotomic Rigidity via Brauer Groups
Wojciech Porowski Étale theta function and cyclotomic rigidity
Kazumi Higashiyama Mono-anabelian geometry over sub-p-adic fields via Belyi cuspidalization
Kazumi Higashiyama Log-shell and Log-volume
Sept. 2 (Thursday)
Yu Yang Constructions of Hodge Theaters I and II 
Wojciech Porowski Evaluation of the theta function I and II 
Sept. 3 (Friday)
Arata Minamide Log-Theta Lattice: Symmetries and Indeterminacies I, II and III  
Shinichi Mochizuki Q & A Session [MS whiteboard], [ClsIUT] (marked up version)
Shinichi MochizukiClosing words

The following Leitfaden can be used as a guide for the series of talks of the two IUT workshops.

Access to the videos and purpose of use

Access to the videos will be provided to professional mathematicians (and graduate students in mathematics) who register by sending an e-mail to any of the members of the Organizing Committee of the two IUT workshops stating the

  • name,
  • affiliation, and
  • email address
of the person to be registered. The videos may be shown to a few colleagues, but are not to be made public. Moreover, the videos are to be used only for scholarly, mathematical purposes. In particular, the videos are not to be used for non-mathematical purposes.

Update March 2022. For certain technical reasons, in some cases, it may be necessary for mathematicians who registered prior to March 1, 2022, to register again in order to be able to view the videos subsequent to March 31, 2022.

Organizing Committee: Benjamin Collas, Ivan Fesenko, Yuichiro Hoshi, Shinichi Mochizuki, Yuichiro Taguchi.

RIMS Workshop supported by RIMS and
Symmetries and Correspondences

This workshop is one of four workshops of special RIMS year "Expanding Horizons of Inter-universal Teichmüller Theory".

For a list of participants, programme and schedule see the main page of the workshop.

The special RIMS year "Expanding Horizons of Inter-universal Teichmüller Theory" will also include the following three workshops: