Numerical Methods for Spectral Problems: Theory and Applications 2025

25 - 30 August, 2025     Miyako Island, Okinawa, Japan

August 25, 2025

A1   A1: General information August 25 9:00-12:00   Main room
9:00-12:00 There is shuttle bus provided by the hotel. Please check the timetable in the url below.
https://shigira.com/en/access
A2   Registration (hotel registration) August 25 15:00-17:00   Main room
15:00-17:00 Registration (Hotel registration only)
You are welcome to come to the front of the hotel at 18:00 to go to dinner together. (Restaurant to be decided on site.)

August 26, 2025

A3   Normal Talks August 26 9:15-12:00   Main room
Chairman: Xuefeng Liu & Takuya Tsuchiya
9:15 - 9:45 GEMM based emulation method using Chinese Remainder Theorem   abstract
KATSUHISA OZAKI (Shibaura Institute of Technology)  
9:45 - 10:15 Some topics on finite element error analysis on anisotropic meshes   abstract
Takuya Tsuchiya (Osaka Univ)  
10:15 - 10:45 DG methods for Laplace--Beltrami eigenvalue problem on point clouds   abstract
Hailong Guo (Univ of Melbourne)  
10:45 - 11:10 Break time
11:10 - 11:40 A Finite Element Method on Polyhedral Domains with Mixed Element Types   abstract
Kosuke Sugita (Wayne State University)  
11:40 - 12:10 Verified Numerical Computation for an Eigenvalue Subset of Real Symmetric Matrices   abstract
Takeshi Terao (Kyusyu Univ)  
A4-1   Normal Talks August 26 13:30-14:00   Main room
Chairman: Shuo Zhang (AMSS, Chinese Academy of Sciences)
13:30 - 14:00 An edge element method for Maxwell's transmission eigenvalue problem in anisotropic media   abstract
Jiayu Han (Guizhou Normal University)  
14:00 - 14:30 The augmented and augmented-mixed methods for the elastic contact problems   abstract
Guanyu Zhou (University of Electronic Science and Technology of China)  
A4-2   Open Question & Open Discussion August 26 14:30-17:00   Main room
14:30-17:00 Open Question Description
KATSUHISA OZAKI (Shibaura Institute of Technology)
Takuya Tsuchiya (Osaka Univ)
Hailong Guo (Univ of Melbourne)
Kosuke Sugita (Wayne State University)
Takeshi Terao (Kyusyu Univ)
Jiayu Han (Guizhou Normal University)
Others (speakers who want an early discussion)
14:30-17:00 Open Discussion
   Banquet August 26 19:15-21:00   琉球居酒屋 昴
19:15-21:00 Welcome party with food and drink
(See details of menu in our notification email "Information to Share")
Place: RYUKYU IZAKAYA SUBARU (琉球居酒屋 昴)
Link of map:

August 27, 2025

A5   Normal Talks August 27 9:15-12:00   Main room
Chairman: Kenta Kobayashi (Hitotsubashi University)
9:15 - 9:45 Guaranteed computation for eigenvalue problems and its applications   abstract
Xuefeng Liu (Tokyo Woman's Christian University)  
9:45 - 10:15 Some upper and lower bounds of eigenvalues by mixed finite element methods   abstract
Shuo Zhang (Academy of Mathematics and Systems Science, Chinese Academy of Sciences)  
10:15 - 10:45 Toward lower bound estimation in quantum mechanical two-body problems   abstract
Shuhei Ohno (RIKEN & Yokohama City University)  
10:45 - 11:10 Break time
11:10 - 11:40 Localization of Maxwell's eigenfunctions on a ball   abstract
Huiyuan Li (Institute of Software Chinese Academy of Sciences)  
11:40 - 12:10 Two extremum problems for Neumann eigenvalues   abstract
Lorenzo Cavallina (Tohoku University)  
A6-1   Normal talks August 27 13:30-14:30   Main room
13:30 - 14:00 Error analysis of Lagrange interpolation on triangles and tetrahedra   abstract
Kenta Kobayashi (Hitotsubashi University)  
14:00 - 14:30 Computer-assisted verification of the simplicity of the second Dirichlet eigenvalue for non-equilateral triangles   abstract
Ryoki Endo (Niigata University)  
A6-2   Open Question & Open Discussion August 27 15:00-17:00   Main room
15:00-17:00 Open Question Description
Xuefeng Liu (Tokyo Woman's Christian University)
Shuo Zhang (Academy of Mathematics and Systems Science,CAS)
Shuhei Ohno (RIKEN & Yokohama City University)
Huiyuan Li (Institute of Software Chinese Academy of Sciences)
Lorenzo Cavallina (Tohoku University)
Kenta Kobayashi (Hitotsubashi University)
Ryoki Endo (Niigata University)
Wei Wang (Academy of Mathematics and Systems Science,CAS)
Others (speakers who want an early discussion)
Open Discussion

August 28, 2025

A7   Lecture on verified computation August 28 9:15-12:00   Main room
9:15-10:45 Lecture by Prof. Katsuhisa OZAKI.
A8   Tour to Miyako Island August 28 11:00-17:00   Main room
11:00-17:00 11:00~17:00

August 29, 2025

A9   Normal talks August 29 9:15-12:00   Main room
9:15 - 9:45 Fast interval computation for Perron vectors of a class of weakly irreducible nonnegative tensors   abstract
Shinya Miyajima (Iwate University)  
9:45 - 10:15 Efficient Calcuation of Transition State (Morse Index-1 Saddle Point)   abstract
Xiang ZHOU (City University of Hong Kong)  
10:15 - 10:45 Domain Decomposition for Eigenvalue Problems   abstract
Wei Wang (CAS)  
10:45 - 11:00 Break time
11:00 - 11:30 High order methods for nonlinear evolution equations governed by semibounded or dissipative operators in normed space   abstract
Wansheng Wang (Shanghai Normal University)  
11:30 - 12:00 Introduction to cloud computing for education and research   abstract
Xuefeng Liu (TWCU)  
A10   Open Question & Open Discussion August 29 14:30-17:00   Main room
13:30-14:30 Open Question Description
Shinya Miyajima (Iwate University)
Xiang ZHOU (City University of Hong Kong)
Jiayu Han (Guizhou Normal University)
Wansheng Wang (Shanghai Normal University)
Wei Wang (Academy of Mathematics and Systems Science,CAS)
14:30-17:00 Open Discussion

August 30, 2025

Closing   August 30 9:00-10:00   Main room
9:00-10:00 Closing session