• Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam
• International Center of Research and Postgraduate Training in Mathematics, Hanoi, Vietnam
• Phenikaa University, Hanoi, Vietnam

• Professor Dinh Nho Hao (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)
• Professor Alexander Ioffe (Technion - Israel Institute of Technology, Haifa, Israel)
• Professor Alex Kruger (Federation University Australia, Australia)
• Professor Vu Hoang Linh (Hanoi University of Science, Vietnam National University, Hanoi, Vietnam)
• Professor Boris Mordukhovich (Wayne State University, USA)
• 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 Terry Rockafellar (University of Washington, USA)
• Professor Nguyen Khoa Son (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)
• Professor Michel Théra (University of Limoges, France)
• 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 ofScience and Technology, Hanoi, Vietnam – Chair)
• Nguyen Duc Trung Kien (Phenikaa University, Hanoi, Vietnam)
• Huynh Van Ngai (Quy Nhon University, Binh Dinh, 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)
• Le Hai Yen (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)

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

1. Samir Adly (University of Limoges, France) 
2. Francisco José Silva Álvarez (Univesity of Limoges, France)
3. Pham Van Canh (Phenikaa University, Hanoi, Vietnam)
4. Nguyen Dinh (International University, Vietnam National University, Ho Chi Minh City, Vietnam)
5. Abderrahim Jourani (Institut de Mathématiques de Bourgogne, France)
6. Pham Duy Khanh (Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam)
7. Alexander Kruger (Federation University Australia, Australia)
8. Boris Mordukhovich (Wayne State University, USA)
9. Arnd Rösch (University of Duisburg-Essen, Germany)
10. Claudia Alejandra Sagastizábal (State University of Campinas, Brasil)
11. Christiane Tammer (Martin-Luther-University Halle-Wittenberg, Germany)
12. Le Hai Yen (Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam)

1.  Prof. Cung The Anh, Hanoi University of Education, Hanoi, Vietnam
2.  Dr. Duong Thi Kim Huyen, Phenikaa University, Hanoi, Vietnam
3.    Prof. Le Ba Khiet,  
4.    Tran Ngoc Nguyen, Quy Nhon University, Vietnam
5.    Prof. Đỗ Đức Thuận, Hanoi University of Science and Technology, Hanoi, Vietnam
6.    Prof. Nguyen Van Tuyen, Hanoi Pedagogical University 2, Xuan Hoa, Phu Tho, Vietnam
7.    Prof. Vu Huu Nhu, Phenikaa University, Hanoi, Vietnam
8.    Prof. Nguyen Thi Toan, Hanoi University of Science and Technology, Hanoi, Vietnam

To be announced.

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 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.

To be announced.

To be announced.

To be announced

To be announced