Công bố năm 1991
1. Vũ Ngọc Phát, Control problems of nonlinear dynamical systems with phase constraints, International Series of Numerical Analysis, 99 (1991), 433 - 440.
2. Nguyễn Minh Trí, On the property of global hypoellipticity of a differential operator, Matematicheskie Zametki, 49 (1991), N$^o$ 2, 147 - 149 (in Russian). ( Translation in Mathematical Notes 49 (1991), N$^o$ 1 - 2, 221 - 223.)
3. Ngô Việt Trung, On the presentation of Hodge algebras and the existence of Hodge algebra structures, Communications in Algebra, 19 (1991), 1183 - 1195.
4. Manfred Herrmann, Jürgen Ribbe, Ngô Việt Trung, Santiago Zarzuela, Bounds for the multiplicity of almost complete intersections, Manuscripta mathematica, 72 (1991), 275 - 296
5. Winfried Bruns, Aron Simis, Ngô Việt Trung, Blow-ups of straightening closed ideals in ordinal Hodge algebras, Transactions of the American Mathematical Society, 326 (1991), 507 - 528.
6. Manfred Herrmann, Jürgen Ribbe, Ngô Việt Trung, Rees algebras of non-singular equimultiple prime ideals, Nagoya Mathematical Journal, 124 (1991), 1 - 12.
7. Nguyễn Khoa Sơn, Nguyen Dinh Huy, On the qualitative properties of the solution set to functional differential inclusions in Banach spaces, Vietnam J. Math., 19(1991), 45-58
8. D. Hinrichsen, Nguyễn Khoa Sơn, Stability radii of discrete-time systems and simpletic pencils, International Journal of Robust and Nonlinear Control, 1(1991), 79-91
9. Nguyen Dinh Huy, Nguyễn Khoa Sơn, On the existence of solutions of functional differential inclusions in Banach spaces, Acta Mathematica Vietnamica, 16(1991), 49-60
10. Nguyễn Đình Công, Lyapunov exponents and central exponents of systems with weakly varying coefficients under small random perturbations English transl, Differential Equations, 27 (1991), N$^o$ 10, 1208 - 1213.
11. Trần Đức Vân, Đinh Nho Hào, Trinh Ngoc Minh, R. Gorenflo, On the Cauchy problems for systems of partial differential equations with a distinguished variable., Numerical Functional Analysis and Optimization, 12 (1991), 213 - 236.
12. Đinh Nho Hào, R. Gorenflo, An ill-posed problem for the heat equation, Zeitschrift f\"ur angewandte Mathematik und Mechanik, 71 (1991), 759 - 762.
13. Đinh Nho Hào, R. Gorenflo, A noncharacteristic Cauchy problem for the heat equation., Acta Applicandae Mathematicae, 24 (1991), 1 - 27.
14. Phạm Huy Điển, Nguyễn Đông Yên, On implicit function theorems for set-valued maps and their application to mathematical programming under inclusion constraints, Applied Mathematics and Optimization, 24 (1991), 35 - 54.
15. Phạm Hồng Quang, Nguyễn Đông Yên, New proof for a theorem of F. Giannessi, Journal of Optimization Theory and Applications, 68 (1991), 385 - 387.
16. Lê Tuấn Hoa, The Gorenstein property depends upon characteristic for affine semigroup rings, Archiv der Mathematik, 56 (1991), 228 - 235.
17. Lê Tuấn Hoa, Jürgen Stückrad, Wolfgang Vogel, Towards a structure theory for projective varieties of degree = codimension + 2, Journal of Pure and Applied Algebra, 71 (1991), 203 - 231.
18. Lê Tuấn Hoa, A note on projective monomial surfaces, Mathematische Nachrichten, 154 (1991), 183 - 188
19. Lê Tuấn Hoa, On monomial $k$-Buchsbaum curves in $P^3$, Manuscripta Mathematica, 73 (1991), 423 - 436.
20. Nguyễn Quốc Thắng, On the weak Hasse principle, Bulletin of the Polish Academy of Sciences, 39 (1991), 141 - 145
21. Nguyễn Quốc Thắng, A note on the Hasse principle. Addenda, Acta Arithmetica, 59 (1991), 145 - 147.
22. Effect of the subdivision strategy on convergence and efficiency of some global optimization algorithms, J. Global Optim. 1 (1991), 23 - 36
23. Polyhedral annexation, dualization and dimension reduction technique in global optimization, J. Global Optim. 1 (1991), 229 - 244
24. On the Cauchy problems for systems of partial differential equations with a distinguished variable, Numer. Funct. Anal. Optim. 12 (1991), 213 - 236
25. Sur l irregularite du diagramme splice pour l entrelacement a l infini des courbes planes, C. R. Acad. Sci. Paris, Serie 1, 313 (1991), 277 - 280
26. A formula for Lojasiewicz numbers and a new characterization of the irregularity at infinity of algebraic plane curves, Vietnam J. Math. 19 (1991), 72 - 82
27. On implicit function theorems for set-valued maps and their application to mathematical programming under inclusion constraints, Appl. Math. Optim. 24 (1991), 35 - 54
28. New proof for a theorem of F. Giannessi, J. Optim. Theory Appl. 68 (1991), 385 - 387
29. On a class of Watson multidimensional integral transforms, Dokl. Akad. Nauk SSSR 317 (1991), 797 - 800; English transl.: Soviet Math. Dokl. 43 (1991), 508 - 510
30. An algorithm for indefinite quadratic programming with convex constraints, Operations Resarch Letters 10 (1991), 323 - 327
31. Some approximative problems for nonlinear inequalities, Uspekhi Matematicheskikh Nauk, 46 (1991) (in Russian).
