Ngô Văn Lược, Numerico-analytic solution of axial-symmetrical filtration problem in nonhomogeneous medium, Tạp chí Toán học 8 (1980), 11 - 17 (in Vietnamese).
Đỗ Văn Lưu, Sufficient conditions for optimization problems under Lipschitz conditions, Tạp chí Toán học 8 (1980), 27 - 33 (in Vietnamese).
Đỗ Văn Lưu, Sufficient conditions for optimality in Banach spaces, Tạp chí Toán học 8 (1980), 18 - 24 (in Vietnamese).
Đỗ Văn Lưu, Necessary and sufficient conditions for optimization problems, Ph.D. Thesis, Institute of Mathematics, Hanoi, 1980, 94 p (in Vietnamese).
Nguyễn Văn Ngọc, On a contact problem for elastic strip, Tạp chí Toán học 8 (1980), 1 - 9
Đỗ Hồng Tân, Dương Trọng Nhân, Common fixed points of two mappings of contractive type, Acta Math. Vietnam. 5 (1980), 150 - 160
Nguyễn Tố Như, Extending metrics uniformly, Colloq. Math. 43 (1980), 91 - 97
Vũ Ngọc Phát, Controllability of pseudolinear dynamical systems, Vietnam J. Math. 2 (1980), 18 - 23 (in Vietnamese).
Vũ Ngọc Phát, Controllability of nonlinear dynamical discrete-time systems, Acta Math. Vietnam. 2 (1980), 63 - 74
Vũ Quốc Phóng, Theorems of von Neumann type for operators of some classes, Dokl. Akad. Nauk Ukrain. SSR 8 (1980), 8 - 11 (in Russian).
Vũ Quốc Phóng, On the spectral theory of scalar operators on Banach spaces, Dokl. Akad. Nauk SSSR 254 (1980), No 5, 1038 - 1042 (in Russian).
Hồ Đăng Phúc, Nguyễn Văn Thu, On Doéblin theorem for random measures, Acta Math. Vietnam. 5 (1980), 74 - 77
Nguyễn Khoa Sơn, Local controllability of linear systems with restrained controls in Banach space, Acta Math. Vietnam. 5 (1980), 78 - 87
Đỗ Hồng Tân, On the Banach contraction principle, Tạp chí toán học 8 (1980), 1 - 10 (in Vietnamese).
Đỗ Hồng Tân, On the contraction principle in uniformizable spaces, Acta Math. Vietnam. 5 (1980), 88 - 99
Nguyễn Xuân Tấn, Some fixed point theorems for multivalued mappings, Acta Math. Vietnam. 5 (1980), 100 - 105
Lê Văn Thành, Singularity of plane curves and integral of the local Nilsson class, Ph.D. Thesis, Institute of Mathematics, Hanoi, 1980, 90 p (in Vietnamese).
Lê Văn Thiêm, Hồ Văn Hóa, Sur certaines sommes binomiales, Acta Math. Vietnam. 5 (1980), 178 - 179 (in French).
Trần Vũ Thiệu, Relationship between bilinear programming and concave minimization under linear constraints, Acta Math. Vietnam. 5 (1980), 106 - 113
Nguyễn Văn Thu, Prediction problem, Dissert. Math., Polish Academy of Sciences, CLXIII (1980), 52 - 65