Research interest:
- Mathematical Analysis
- Applied Mathematics (containing probability and statistics)
- Theory of Optimization
- Differential Equations

- Random Process

Material Published
- Textbooks:
i. Nguyen Xuan Vien / Linear Algebra and Analytical Geometry / Le Quy Don Technical University Pub. House/ Hanoi / 1996
ii. Nguyen Xuan Vien / Theory of probability / Le Quy Don Technical University Pub. House / Hanoi / 1998.
iii.  Pham Ngoc Phuc, Đao Ba Duong / Mathematical Analysis Problems / Vol II /  Le Quy Don Technical University Pub. House / Hanoi / 2000.
iv. To Van Ban. Exercises of  Probability and Mathematical Statistic in Mil. / / Le Quy Don Technical University Pub. House / Hanoi / 2003.
v. To Van Ban / Regression Models / / Le Quy Don Technical University Pub. House / Hanoi /  2004
vi)  Nguyen Xuan Vien / Mathematical Analysis Problems /  Le Quy Don Technical University Pub. House / Hanoi /  2005.
vii. To Van Ban / Selected Exercises of Analysis / People’s Army Publishing House /  Hanoi / 2005.
viii. To Van Ban / Analysis – Advanced Exercises / Vietnam Education Publishing House / 2005.
ix. Nguyen Xuan Vien, Nguyen Hoai Anh, Nguyen Thi Thanh Ha /  Linear Algebra and Analytical Geometry: Problems / People’s Army Publishing House /  Hanoi / 2010.
x. To Van Ban / Probability and Mathematical statistic / Vietnam Education Publishing House / Hanoi / 2010.
xi. Nguyen Trong Toan / Numerical Computing Methods /  People’s Army Publishing House /  Hanoi / 2011.
xi. To Van Ban, Calculus I, Vietnam Education Publishing House, Hanoi, 2012.
xii. To Van Ban, Calculus II, Vietnam Education Publishing House, Hanoi, 2012.
Completed Research Projects