KIAS Number Theory Seminar



Big Heegner points and Heegner cycles

Kazuto Ota (Keio University)

March 28 (Tue), 2019, 4pm-6pm, Room 1424

Abstract: The Big Heegner point, constructed by Howard, is a deformation of the Heegner point for the Galois representation attached to a Hida family. Castella showed that it interpolates Heegner cycles (higher weight-analogues of the Heegner point) attached to newforms arising from the Hida family, by using p-adic local methods such as Bloch-Kato logarithms. In this talk, we explain a slight refinement of his result by a different approach, which is global and more geometric.



In each month, we usually meet at

  • Room 1423 or 1424,
  • 4 or 5PM, and
  • Thursdays or Fridays.

    However, there are also many exceptions. Please check the tentative schedule of upcoming seminars.

  • Please send the organizer an email if you are interested in giving a talk. If you want to receive regular email announcement, please send an email with your name/affiliation, in title of "subscribe", to the organizer.

    width="50" *


    The first number theory seminar started March 10th, 2005 and it became a regular seminar since then. For more information on the early history of the number theory seminar, see the article (by Soon-Yi Kang in KIAS News Letter, Fall 2005) and the following archive files.

       Archive: 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 |

    Number Theory Group at KIAS:
    (email: +@kias.re.kr)

    Choi, Youn-Seo (y-choi2)
    Choi, Junhwa (joonhwa)
    Haan, Jae-ho (jaehohaan)
    Kim, Chan-Ho (chanho)
    Kim, Eunmi (ekim)
    Lee, Chulhee (chlee)

    (*) The picture is originally a PGF created by Jang Soo Kim and is under the creative commons licence.