Organizers:

Nathan Green (Louisiana Tech University in Ruston)
Pavel Guerzhoy (University of Hawai'i, Mānoa)
Masanobu Kaneko (Kyushu University, Fukuoka)
Federico Pellarin (Sapienza, Rome)

Meeting in the Middle: Conference on characteristic 0 and characteristic p multiple zeta values (and other topics)

in Mānoa, Hawaii, March 16-20, 2026

This conference was a “building bridges”-type conference. It brought together researchers from two separate, but related areas of mathematics: Multiple zeta values (MZV) over function fields (characteristic p) and MZV over the real numbers (characteristic 0).

List of speakers

Annika Burmester

Bielefeld University

Henrik Bachmann

Nagoya University

Francis Brown

University of Oxford

Chieh-Yu Chang

National Tsing Hua University

William Craig

U.S. Naval Academy

Hidekazu Furusho

University of Nagoya

Ryotaro Harada

Tokyo University of Science

Minoru Hirose

Kagoshima University

Daichi Matsuzuki

National Tsing Hua University/Texas A&M University (from March 2026)

Yoshinori Mishiba

Tohoku University

Yasuo Ohno

Tohoku University

Ken Ono

Axiom Math and the University of Virginia

Nobuo Sato

National Taiwan University

Shin-ichiro Seki

Nagahama Institute of Bio-Science and Technology

Koji Tasaka

Kindai University

Dinesh Thakur

University of Rochester

Conference Funding

We are grateful to the following organizations for generously providing funding/sponsorship for the conference.

Schedule

Monday (March 16)

9:30–10:00 — Coffee and Welcome
10:00–11:00 — Ken Ono (Axiom Math and the University of Virginia)
The secret life of partitions.
11:15–12:15 — Dinesh Thakur (University of Rochester)
Multizeta variants: Analogies and Contrasts.
12:15–14:15 — Lunch
14:15–15:15 — Minoru Hirose (Kagoshima University)
Confluence relations for q-analogues of multiple zeta values.
15:15–16:00 — Coffee
16:00–17:00 — Shin-ichiro Seki (Nagahama Institute of Bio-Science and Technology)
The drop-one relation and multiple zeta-diamond values.

Tuesday (March 17)

9:30–10:00 — Coffee
10:00–11:00 — Chieh-Yu Chang (National Tsing Hua University)
Main Theorem of Extra Multiplication for t-motives.
11:15–12:15 — Yoshinori Mishiba (Tohoku University)
Involution on a quotient space of multiple zeta values in positive characteristic.
12:15–14:15 — Lunch
14:15–15:15 — William Craig (U.S. Naval Academy)
Integer partitions detect the primes.
15:15–15:45 — Coffee
15:45–17:45 — Three contributed talks:
- 15:45–16:25 — Giacomo Ferraro (Texas A&M University)
  Generalization of Pellarin's L-value to Drinfeld modules of arbitrary rank.
- 16:25–17:05 — Jianbo Sun (Kyushu University)
  Relations in Derivation Algebras of Free Lie Algebras and Period Polynomials.
- 17:05–17:45 — Katsumi Kina (Kyushu University)
  An explicit expression of MZVs in terms of symmetric MZVs.

Wednesday (March 18)

9:15–9:30 — Coffee
9:30–10:30 — Francis Brown (University of Oxford)
Motivic iterated integrals and relations obtained by taking limits.
10:45–11:45 — Annika Burmester (Bielefeld University)
A coproduct for multiple q-zeta values.
12:00–13:20 — Two contributed talks:
- 12:00–12:40 — Hayato Kanno (Tohoku University)
  On Q-linear relations among multiple Eisenstein series.
- 12:40–13:20 — Mahiro Yokomizio (Tohoku University)
  Multiple Modular Values of Level 4 and Multiple Zeta Values.
13:20–… — Free Afternoon

Thursday (March 19)

9:30–10:00 — Coffee
10:00–11:00 — Hidekazu Furusho (University of Nagoya)
Rational approximation of p-adic multiple zeta values.
11:15–12:15 — Henrik Bachmann (Nagoya University)
Formal finite multiple zeta values and the strong parity conjecture.
12:15–14:15 — Lunch
14:15–15:15 — Koji Tasaka (Kindai University)
FAN of recurrent sequences.
15:15–15:45 — Coffee
15:45–17:45 — Three contributed talks:
- 15:45–16:25 — Jinbo Yu (Nagoya University)
  On the sl₂-structure of Schur Eisenstein series.
- 16:25–17:05 — Ku-Yu Fan (Nagoya University)
  p-adic multiple zeta values of integer indices.
- 17:05–17:45 — Takeshi Shinohara (Nagoya University)
  Values of zeta functions of root systems of type Aᵣ at non-positive integers and their applications.
18:30–21:00 — Banquet

Friday (March 20)

9:30–10:00 — Coffee
10:00–11:00 — Daichi Matsuzuki (National Tsing Hua University / Texas A&M University)
On the algebraic independence of special values of v-adic Carlitz multiple polylogarithms.
11:15–12:15 — Ryotaro Harada (Tokyo University of Science)
Linear relations between algebraic points on tensor powers of the Carlitz module.
12:15–14:15 — Lunch
14:15–15:15 — Yasuo Ohno (Tohoku University)
Various relations among Schur multiple zeta values.
15:15–16:00 — Coffee
16:00–17:00 — Nobuo Sato (National Taiwan University)
Multiple t-values of full height.

Useful information

The venue was the University of Hawai'i at Mānoa, in Honolulu, on the island of O'ahu. The meeting took place in Bilger Hall 335. The approximative emplacement is here. Bilger Hall is a building on the campus. It houses the Department of Chemistry and some related laboratories and classrooms. It is located along Maile Way, roughly in the central-east part of the Manoa campus.

The schedule, as well as some useful information, titles and abstracts of the talks can be found here. A simplified schedule can be found here.

For the coffee breaks we used a room in a courtyard adjacent to the building.

For lunch, one possibility was Mānoa Marketplace, which is about one mile away.

We had a Social dinner on March 19, 2026, from 6:30 PM to 9:00 PM. Venue: Japanese Cultural Center of Hawaii, 2454 S. Beretania St., 5th Floor, Honolulu, Hawaii 96826. Location.

Part of the week of the conference was rainy. But we didn't underestimate the option of bringing an umbrella and/or a raincoat!

Two nice pictures taken on Wednesday 18 near the venue of the conference in the beautiful campus: Group picture, Group picture 2. There are other pictures, ask the organizers. Also, you may want to share some pictures. Let us know.

Accommodations

The organizers have reserved a limited number of rooms at the East-West Center, Lincoln Hall.

Details on these rooms and their costs can be found at the website: https://www.eastwestcenter.org/campus/housing/visitor-housing

Getting to UH Mānoa

The University of Hawaii at Mānoa is located in lush Mānoa valley, on the island of Oahu, approximately 8 miles from Honolulu International Airport, 4 miles from downtown Honolulu.

Taxis, Uber and other rideshare services are plentiful at the airport. Public bus transportation is available in the city of Honolulu (see https://www.thebus.org/).

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