Nonlinear Analysis and Convex Analysis
RIMS Workshop, August 28–30, 2023
Organizer

Yutaka Kimura
Koji Aoyama(Akita Prefectural Univ.)(Chiba Univ.)

Room 111 of Research Institute for Mathematical Sciences, Kyoto University
Access : https://www.kurims.kyoto-u.ac.jp/en/access-01.html

PROGRAM
Each name ﬂagged with an asterisk is the speaker of the talk.
Aug. 28 (Mon)9:50–10:00

Yutaka Kimura (Akita Prefectural Univ.)
Opening Address

10:00–10:30*Haruto Itagaki (Toho Univ.), Yasunori Kimura (Toho Univ.)
A convergence theorem to a solution to an equilibrium problem using CQ projection
method

10:30–11:00

Shuta Sudo (Toho Univ.)
A modiﬁed Halpern type iterative scheme on a geodesic space

Break11:15–11:45

Yasunori Kimura (Toho Univ.), *Tomoya Ogihara (Toho Univ.)
Convergence of a sequence generated by a new projection method in Hadamard spaces

11:45–12:15

Yasunori Kimura (Toho Univ.), *Tomoki Oguchi (Toho Univ.)
An approximating sequence and its limit by a projection method on a complete geodesic
spaceLunch
13:45–14:15

Shindo Keisuke（National Institute of Technology, Hachinohe College）
Asymptotic behavior of the resolvent for a sequence of monotone operators on a complete
geodesic space

14:15–14:45

Hiroko Manaka (Nihon Univ.)
Strong convergence theorems for a solution of split feasibility problem in Banach spaces

14:45–15:15

Yukio Takeuchi (Takahashi institute for nonlinear analysis)
On a characterization of uniformly convex Banach spaces

Break
15:30–16:00

Takanori Ibaraki (Yokohama National Univ.), Shunsuke Kajiba (Yokohama NationalUniv.), *Ryuji Nakano (Yokohama National Univ.)
A shrinking projection method with allowable range for zero point problems in a Hilbertspace

16:00–16:30

Takanori Ibaraki(Yokohama National Univ.), *Shunsuke Kajiba(Yokohama NationalUniv.), Yukio Takeuchi(Takahashi Institute for Nonlinear Analysis)
A strong convergence theorem for common ﬁxed points of commutative two nonlinearmappings

Aug. 29 (Tue)10:00–10:30

Yasunori Kimura(Toho Univ.), *Miho Nakadai(Toho Univ.)
Approximation of a minimizer of a convex function on a geodesic space

10:30–11:00

Kazuya Sasaki（Toho Univ.）
Study on some special convex functions

Break11:15–11:45

Yousuke Araya (Akita Prefectural Univ.)
Extension of vector space and set optimization problem

11:45–12:15

Wei-Shih Du（National Kaohsiung Normal Univ., Taiwan）
New ﬁxed point theorems and simultaneous generalizations in ﬁxed point theory

Lunch
13:45–14:15*Tomoki Tokunaga（Akita Prefectural Univ.），Shin-ya Matsushita（Akita PrefecturalUniv.），Xu Li（Akita Prefectural Univ.）
Primal-dual splitting algorithm for the minimum fuel control

14:15–14:45

Hiroaki Mohri (Waseda Univ.), *Jun-ichi Takeshita (AIST)
Convergence of Palais-Smale sequences and global optimization

14:45–15:15

Masamichi Kon (Hirosaki Univ.)
Scalarization method for some kinds of set or fuzzy set-valued optimization problems

Break
15:30–16:00

Tsuneshi Obata(Oita Univ.), *Shunsuke Shiraishi(Hirosima Institute of Technology)
Convergence of Newton’s method for the characteristic equation of a fourth-order pairwise
comparison matrix in the analytic hierarchy process

16:00–16:30

Hidefumi Kawasaki (Professor Emeritus Kyushu Univ.)
An application of Borsuk-Ulam theorem to optimization

Aug. 30 (Wed)10:00–10:30

Shigeru Iemoto (Chuo Univ.)
Some results on approximate solutions of variational inequality problems for inverse
strongly monotone operators

10:30–11:00

Takashi Honda (Iwate Univ.)
The convergence of the sequence of conditional expectations

Break
11:15–11:45*Ryota Iwamoto (Niigata Univ.), Tamaki Tanaka (Niigata Univ.)
On relationships between asymptotic cones and several notions of semicontinuities for
set-valued maps

11:45–12:15*Longrio Platil（Niigata Univ.), Tamaki Tanaka（Niigata Univ.）
Multi-criteria comparison of intuitionistic fuzzy sets from the viewpoint of set optimization

Lunch
13:45–14:15

Yuto Ogata ( Kanazawa-Gakuin Univ.)
Robustness of feasibility for multi-valued optimization via sublinear characterization

14:15–14:45

Toshikazu Watanabe (Nihon Univ.)
On α-ψ-contractive type mappings and their asymptotic versions

14:45–15:15

Wang Qi(Nagasaki Institute of Applied Science), Aiko Kurushima(Sophia Univ.),
Masayuki Horiguchi (Kanagawa Univ.)
On an improvement of algorithms for interval estimated stochastic transition matrices

Break
15:30–16:00

Mitsuhiro Hoshino（Akita Prefectural Univ.）
On nearly absorbing state class in self-organizing maps with inner-product iterative learning

16:00–16:30

Seiichi Iwamoto（Professor Emeritus Kyushu Univ.）, *Yutaka Kimura（Akita PrefecturalUniv.）
Fibonacci optimization and its related ﬁeld — duality — (II)