This is a continuation of the conference "Regulators in Niseko", held in 2015, 2017 and 2019. Its objective is to promote communications between mathematicians working on subjects related to L-functions and Motives. The venue is in the middle of national parks in Hokkaido and conveniently accessible from Sapporo city or New Chitose Airport.
Hidekazu Furusho (Nagoya University)
Thomas Geisser (Rikkyo University)
Kei Hagihara (Keio University)
Takashi Hara (Tsuda University)
Shushi Harashita (Yokohama National University)
Shin Hattori (Tokyo City University)
Jean-Stefan Koskivirta (Saitama University)
Shigeki Matsuda (Chiba University)
Shun Ohkubo (Nagoya University)
Kenji Sakugawa (Shinshu University)
Toshifumi Yabu (Hokkaido University)
Kento Yamamoto (Hokkaido University)
Yuri Yatagawa (Tokyo Institute of Technology)
Room : Higashiyama 東山 (3rd floor)
Wednesday 7
Arrival
Thursday 8
10:00-11:00 : S. Matsuda, "Higher dimensional Witt vectors"
11:20-12:20 : K. Yamamoto, "Duality for p-adic étale Tate twists with modulus"
15:00-16:00 : K. Hagihara, "The Hodge realization of the polylogarithm and the Shintani generating class for totally real fields"
16:20-17:20 : T. Yabu, "Explicit functional logarithmic formulas for hypergeometric functions 3F2"
Friday 9
9:00-12:00 : Poster Session
14:00-15:00 : S. Hattori, "Triviality of the Hecke action on ordinary Drinfeld cuspforms of level $\Gamma_1(t^n)$"
15:20-16:20 : J.-S. Koskivirta, "Weights of mod p automorphic forms"
16:40-17:40 : T. Hara, "On p-adic Artin L-functions for CM fields"
19:00- : Banquet
Saturday 10
9:00-10:00 : S. Ohkubo, "A note on the convergence Newton polygons of p-adic differential equations in the regular singular case"
10:15-11:15 : T. Geisser, "Brauer groups and Neron-Severi groups of surfaces over finite fields"
Excursion
Sunday 11
9:20-10:20 : Y. Yatagawa, "Characteristic cycle of a rank one sheaf in codimension 2"
10:50-11:50 : S. Harashita, "Differential forms on degenerations of superelliptic curves and Appell-Lauricella hypergeometric series"
15:00-16:00 : K. Sakugawa, "On the real mixed Hodge structures on the pro-unipotent fundamental groups of modular curves"
16:20-17:20 : H. Furusho, "On l-adic and p-adic hypergeometric functions"
Monday 12
Departure
We will organize a hiking on Saturday afternoon (subject to weather conditions).
Fee (per night, meals and taxes included) : Single ¥20,000 / Twin (shared) ¥14,000 (per pers.) / Triple (shared) ¥13,000 (per pers.).
If the situation permits, we will organize a banquet on Friday evening. In that case, additional ¥4,000 will be charged.
Wifi connection is available in the guest rooms and the lecture hall. 4G mobile connection is available in Niseko/Kutchan area.
We will book the following buses. The fare is ¥4,000 (one way).
Sep. 7, 15:00 New Chitose Airport (map of the meeting place) - 17:30 Hilton Niseko Village (estimated time of arrival).
Sep. 12, 9:00 Hilton Niseko Village - 11:30 New Chitose Airport - 12:30 Sapporo Station (estimated time of arrivals).
You can also take a train from New Chitose Airport (via Sapporo and Otaru) to Kucchan or Niseko, and take a shuttle bus to the hotel. Google trains / Bus timetable
All the participants including the speakers need to register. The registration will start on April 1, 2022 and the deadline will be August 15, 2022.
Financial Support : We offer financial support for limited participants, mainly speakers and young participants.
A confirmation email will be sent to the registered email address.
You can alter your registration using the link in the email.
This conference is supported by the JSPS Kakenhi Grant : 18K03234 (N. Otsubo), 19K03391 (M. Asakura), 20K03566 (K. Sato), 21H00969 (S. Yasuda).