• Iwasawa 2017


    This is the seventh Iwasawa conference following conferences in Besancon, Limoges, Irsee, Toronto, Heidelberg, and London.


    July 19th-28th, 2017


    日本数学会季期研究所(MSJ-SI 2017)

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    Iwasawa 2017 will be held to commemorate the 100th anniversary of Kenkichi Iwasawa's birth.


  • Date and Place​

    July 24-28, 2017


    Preparatory Lecture Series: July 19-22


    The University of Tokyo - Tokyo, Japan



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  • Organizers


    Scientific Committee of Iwasawa 2017



    Local Organizers


  • Speakers


    (currently confirmed)






    Preparatory Lecture Series Speakers



  • Program

    July 24 (Mon)


    Opening Address


    10:00 - 11:00
    Christopher Skinner
    Iwasawa theory and modular forms

    11:20 - 12:20
    Xin Wan
    Iwasawa main conjecture for non-ordinary modular forms

    14:00 - 15:00
    Kazuya Kato
    Adelic period domains, heights of motives, and Iwasawa theory

    15:20 - 16:20
    Otmar Venjakob
    Towards regulator maps for Lubin-Tate extensions

    16:40 - 17:40
    John Coates, Ehud de Shalit, and Ralph Greenberg
    Memories of Kenkichi Iwasawa

    Reception party

    July 25 (Tue)

    10:00 - 11:00
    Samit Dasgupta
    On the Gross-Stark conjecture and refinements I

    11:20 - 12:20
    Mahesh Kakde
    On the Gross-Stark conjecture and refinements II

    14:00 - 15:00
    Henri Darmon
    Singular moduli for real quadratic fields: a rigid analytic approach

    15:20 - 16:20
    David Burns
    On higher rank Euler and Kolyvagin systems

    16:40 - 17:40
    Poster session

    July 26 (Wed)

    10:00 - 11:00
    Sarah Zerbes
    An Euler system for GSp(4)

    11:20 - 12:20
    Kazım Büyükboduk
    Non-ordinary symmetric squares and Euler systems of rank 2

    Yakata-bune (boat trip) dinner

    July 27 (Thu)

    10:00 - 11:00
    Haruzo Hida
    Cyclicity of adjoint Selmer groups and fundamental units

    (The slides used in Professor Hida's talk can be seen here.)

    11:20 - 12:20
    Preston Wake
    Massey products, pseudo-representations, and the Eisenstein ideal

    14:00 - 15:00
    Yasushi Mizusawa
    Pro-p link groups in Iwasawa theory 

    15:20 - 16:20
    Werner Bley
    Solomon's construction in the elliptic rank 2 case

    16:40 - 17:40
    Takenori Kataoka
    Fitting ideals in equivariant Iwasawa theory

    July 28 (Fri)

    10:00 - 11:00
    Karl Rubin
    Heuristics for the growth of Mordell-Weil ranks in big abelian extensions
    of number fields

    11:20 - 12:20
    Tadashi Ochiai
    Iwasawa Main conjecture for p-adic family of elliptic modular forms

    14:00 - 15:00
    Ming-Lun Hsieh
    Hida families and p-adic triple product L-functions

  • Schedule for the conference

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    Please click here for the title and the abstract for the both the main conference and the preparatory lecture series.

  • Preparatory Lecture Series Program

    David Loeffler : Euler systems ( Professor Loeffler's notes for his lectures can be seen here )
    Andreas Nickel : Non-abelian Stark-type conjectures and noncommutative Iwasawa theory
    Shinichi Kobayashi : Local Iwasawa theory of modular forms for the anti-cyclotomic Z_p-extension.
    Masato Kurihara and Takamichi Sano : Generalized Stark elements of arbitrary weights for Gm

    July 19th (Wed)

    11:00 Registration

    13:00 - 14:00 D. Loeffler 1
    14:30 - 15:30 A. Nickel 1
    16:00 - 17:00 M. Kurihara 1

    July 20 (Thu)​

    10:00 - 11:00 S. Kobayashi 1
    11:30 - 12:30 D. Loeffler 2
    14:30 - 15:30 A. Nickel 2
    16:00 - 17:00 M. Kurihara and T. Sano 2

    July 21 (Fri)

    10:00 - 11:00 T. Sano 3
    11:30 - 12:30 S. Kobayashi 2
    14:30 - 15:30 D. Loeffler 3
    16:00 - 17:00 A. Nickel 3

    July 22 (Sat)

    10:00 - 11:00 S. Kobayashi 3
    11:30 - 12:30 D. Loeffler 4

  • Photos

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    a group photo taken on the second day of the conference, July 25th

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  • Registration

  • Reception Party


    We will hold a reception party on the evening of July 24th on campus of the University of Tokyo.

    Please register below to attend. The fee, which will be collected on the day, will be about 5000 yen. Though it is undecided yet how much, we will reduce the fee to 2000 yen for young researchers. Due to the size of the venue, we have limited seats available on a fist-come-first-served basis.


    Thank you to everyone that registered to attend the reception party.

    We are now closing registration since we are fully booked. (6/2/2017)


  • Yakata-Bune Excursion

    We will go on a night cruise on a traditional Japanese boat on the evening of July 26th.

    For more details, please click here.

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  • Proceedings

    Development of Iwasawa Theory ー the Centennial of K. Iwasawa’s Birth

    This book was published on December 10, 2020 as Volume 86 of Advanced Studies in Pure Mathematics.
    The final versions of all papers are available on the webpage of Project Euclid.


    Memories of Kenkichi Iwasawa

    John Coaes


    My Recollections of Kenkichi Iwasawa

    Ehud de Shalit


    My memories of Iwasawa

    Ralph Greenberg


    Memories of Professor Iwasawa

    Masato Kurihara



    Papers submitted as survey papers


    David Loeffler and Sarah Livia Zerbes

    Andreas Nickel with an appendix by Henri Johnston and Andreas Nickel


    Iwasawa Theory for Modular Forms

    Xin Wan



    Research Papers


    Construction of elliptic p-units

    Werner Bley and Martin Hofer


    On Stark elements of arbitrary weight and their p-adic families
    David Burns, Masato Kurihara and Takamichi Sano


    Beilinson-Kato and Beilinson-Flach elements, Coleman-Rubin-Stark classes, Heegner points and a Conjecture of Perrin-Riou

    Kâzım Büyükboduk


    On primitive p-adic Rankin-Selberg L-functions
    Shih-Yu Chen and Ming-Lun Hsieh

    On the rank one Gross–Stark conjecture for quadratic extensions and the Deligne–Ribet q-expansion principle

    Samit Dasgupta and Mahesh Kakde


    Iwasawa theory for Artin representations I

    Ralph Greenberg and Vinayak Vatsal


    Iwasawa-Cohen-Lenstra heuristic

    Cornelius Greither


    The second syzygy of the trivial G-module, and an equivariant main conjecture

    Cornelius Greither, Masato Kurihara and Hibiki Tokio


    Cyclicity of adjoint Selmer groups and fundamental units

    Haruzo Hida


    Fitting Invariants in Equivariant Iwasawa Theory

    Takenori Kataoka
    Kazuya Kato

    Anticyclotomic main conjecture for modular forms and integral Perrin-Riou twists

    Shinichi Kobayashi and Kazuto Ota


    Syntomic regulators of Asai-Flach classes

    David Loeffler, Christopher Skinner and Sarah Livia Zerbes
    Iwasawa invariants and linking numbers of primes
    Yasushi Mizusawa and Gen Yamamoto


    On Spectral Sequences for Iwasawa Adjoints à la Jannsen for Families

    Oliver Thomas and Otmar Venjakob



    Contact Address



    For further information and questions about the conference, please contact the local organizers at Iwasawa2017@math.keio.ac.jp

  • Map of the Komaba Campus

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    The conference will be held in the Graduate School of Mathematical Sciences Bldg., the lavender colored building at the bottom right hand corner.

  • Map

    See The University of Tokyo on Google Maps