• Institute of Mathematics, Vietnam Academy of Science and Technology (IM-VAST), Hanoi, Vietnam
• International Centre of Research and Postgraduate Training in Mathematics, IM-VAST, Hanoi, Vietnam
• Phenikaa University, Hanoi, Vietnam

• Professor Alexander Ioffe (Technion - Israel Institute of Technology, Haifa, Israel)
• Professor Alexander Kruger (Ton Duc Thang University, Ho Chi Minh City, Vietnam)
• Professor Boris Sholimovich Mordukhovich (Wayne State University, USA)
• Professor Dinh Nho Hao (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)
• Professor Vu Hoang Linh (Hanoi University of Science, Vietnam National University, Hanoi, Vietnam)
• Professor Michel Théra (University of Limoges, France)
• Professor Le Dung Muu (Thang Long University, Hanoi, Vietnam)
• Professor Vu Ngoc Phat (Institute of Mathematics, Vietnam Academy/of Science and Technology, Hanoi, Vietnam)
• Professor Ralph Tyrrell Rockafellar (University of Washington, USA)
• Professor Nguyen Khoa Son (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)
• Professor Nguyen Dong Yen (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)

• Nguyen Quang Huy (Hanoi Pedagogical University 2, Phu Tho, Vietnam)
• Duong Thi Kim Huyen (Phenikaa University, Hanoi, Vietnam)
• Bui Trong Kien (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam – Chair)
• Nguyen Duc Trung Kien (Phenikaa University, Hanoi, Vietnam)
• Huynh Van Ngai (Quy Nhon University, Gia Lai, Vietnam)
• Vu Huu Nhu (Phenikaa University, Hanoi, Vietnam)
• Nguyen Nang Thieu (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)
• Chu Cam Tho (Phenikaa University, Hanoi, Vietnam)
• Vu Van Truong (Phenikaa University, Hanoi, Vietnam)
• Le Hai Yen (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)

• International Centre of Research and Postgraduate Training in Mathematics (IM, VAST, Hanoi, Vietnam)
• Phenikaa University (Hanoi, Vietnam)

1.    Abderrahim Jourani (Université Bourgogne Europe, Dijon, France)
2.    Alexander Kruger (Ton Duc Thang University, Ho Chi Minh City, Vietnam)
3.    Cung Thế Anh (Hanoi National University of Education, Hanoi, Vietnam)
4.    Arnd Rösch (University of Duisburg-Essen, Essen, Germany)
5.    Boris Sholimovich Mordukhovich (Wayne State Universtity, Detroit, USA)
6.    Christiane Tammer (Martin-Luther-University Halle-Wittenberg, Halle, Germany)
7.    Bùi Văn Định (Military Technical Academy, Hanoi, Vietnam)
8.    Nguyễn Định (Ho Chi Minh City International University, Ho Chi Minh City, Vietnam)
9.    Francisco José Silva Álvarez (University of Limoges, Limoges, France)
10.    Trương Xuân Đức Hà (Thang Long University, Hanoi, Vietnam)
11.    Dương Thị Kim Huyền (Phenikaa University, Hanoi, Vietnam)
12.    Phạm Duy Khánh (Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam)
13.    Lê Bá Khiết (Ton Duc Thang University, Ho Chi Minh City, Vietnam)
14.    Marius Durea (“Alexandru Ioan Cuza” University, Iaşi, Romania)
15.    Lê Dũng Mưu (Thang Long University, Hanoi, Vietnam)
16.    Nadia Zlateva (Sofia University, Sofia, Bulgaria)
17.    Trần Ngọc Nguyên (Quy Nhon University, Gia Lai, Vietnam)
18.    Vũ Hữu Nhự (Phenikaa University, Hanoi, Vietnam)
19.    Võ Thành Phát (University of North Dakota, Grand Forks, USA)
20.    Ralph Tyrrell Rockafellar (University of Washington, Seattle, USA)
21.    Samir Adly (University of Limoges, Limoges, France)
22.    Shiva Shankar (Kerala School of Mathematics, Kerala, India)
23.    Tạ Quang Sơn (Saigon University, Ho Chi Minh City, Vietnam)
24.    Đỗ Đức Thuận (Hanoi University of Science and Technology, Hanoi, Vietnam)
25.    Lê Minh Thùy (Hanoi University of Science and Technology, Hanoi, Vietnam)
26.    Nguyễn Hữu Trọn (Quy Nhon University, Gia Lai, Vietnam)
27.    Nguyễn Văn Tuyên (Hanoi Pedagogical University, Phu Tho, Vietnam)
28.    Nguyễn Văn Vũ (Quy Nhon University, Gia Lai, Vietnam)
29.    Zhou Wei (Hebei University, Baoding, China)

Please fill in the required information on THIS FORM to register for the workshop. A copy of the registration form will be sent to your email address via Google Forms with the subject line “International Workshop on Optimization, Variational Analysis and Control Theory (Hanoi, 13- 15/10/2026)”. Please forward this email to ovact2026@math.ac.vn before 16/08/2026 to complete your registration.

For abstract submission: The abstract should not exceed one A4 page, should not contain images, graphs, or forms, and must be created in LaTeX according to the workshop’s template abs4ovact2026.tex in addition to using the style file abs4ovact2026.sty. Deadline for abstract submission: 31/08/2026.

- Workshop Booklet

- Tentative Program

To be announced.

This is the hotel that offer special rates for the workshop participants: Mường Thanh Grand Xa La Hotel. If you would like to book this hotel, please email to ovact2026@math.ac.vn.

There will be a (free) shuttle bus to transfer between the hotel and the workshop venues. Information about the shuttle bus will be announced by email to registered participants.

List of participants