Research interests:

• Integrable systems, solvable lattice models
• Combinatorics of Bethe ansatz, Crystal basis, Fermionic character formulas
• Representation theory of quantum groups, T,Q,Y-systems, Cluster algebras
• Ultradiscrete solitons and tau functions, Geometric crystals
• Box-ball systems and generalized hydrodynamics
• Tetrahedron, 3D reflection and Yang-Baxter equations
• Integrable probability, matirx product method
• Renormalization group theoretical perturbation

Editorial board:

• Reviews in Mathematical Physics (World Scientific 2004-2020)
• SpringerBriefs in Mathematical Physics (Springer)
• Journal of Integrable Systems (Oxford University Press) -2019
• Mathematical Physics, Analysis and Geometry (Springer)
• Journal of Physics A (IOP) Mathematical Physics Section Editor 2013-2016
• Mathematical Society of Japan Memoirs 2003-2012
• Journal of Physical Society of Japan 2002-2004

My books:

• Quantum Groups in Three-Dimensional Integrability (2022)
• Bethe ansatz and Combinatorics ( ベーテ仮説と組合せ論, 2011)

Recent acivity: