Scientific Publications 1991

1. 1. Nguyen Tu Cuong, On the dimension of the non-Cohen-Macaulay locus of local rings admitting dualizing complexes, Mathematical Proceedings of the Cambridge Philosophical Society, 109 (1991), 479 - 488.
2. 2. Vu Ngoc Phat, Control problems of nonlinear dynamical systems with phase constraints, International Series of Numerical Analysis, 99 (1991), 433 - 440.
3. 3. Nguyen Minh Tri, 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.)
4. 4. Ngo Viet Trung, On the presentation of Hodge algebras and the existence of Hodge algebra structures, Communications in Algebra, 19 (1991), 1183 - 1195.
5. 5. Manfred Herrmann, Jürgen Ribbe, Ngo Viet Trung, Santiago Zarzuela, Bounds for the multiplicity of almost complete intersections, Manuscripta mathematica, 72 (1991), 275 - 296
6. 6. Winfried Bruns, Aron Simis, Ngo Viet Trung, Blow-ups of straightening closed ideals in ordinal Hodge algebras, Transactions of the American Mathematical Society, 326 (1991), 507 - 528.
7. 7. Manfred Herrmann, Jürgen Ribbe, Ngo Viet Trung, Rees algebras of non-singular equimultiple prime ideals, Nagoya Mathematical Journal, 124 (1991), 1 - 12.
8. 8. Nguyen Khoa Son, 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
9. 9. D. Hinrichsen, Nguyen Khoa Son, Stability radii of discrete-time systems and simpletic pencils, International Journal of Robust and Nonlinear Control, 1(1991), 79-91
10. 10. Nguyen Dinh Huy, Nguyen Khoa Son, On the existence of solutions of functional differential inclusions in Banach spaces, Acta Mathematica Vietnamica, 16(1991), 49-60
11. 11. NGuyen Dinh Cong, 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.
12. 12. Tran Duc Van, Dinh Nho Hao, 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.
13. 13. Dinh Nho Hao, R. Gorenflo, An ill-posed problem for the heat equation, Zeitschrift f\"ur angewandte Mathematik und Mechanik, 71 (1991), 759 - 762.
14. 14. Dinh Nho Hao, R. Gorenflo, A noncharacteristic Cauchy problem for the heat equation., Acta Applicandae Mathematicae, 24 (1991), 1 - 27.
15. 15. Pham Huy Dien, Nguyen Dong Yen, 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.
16. 16. Pham Hong Quang, Nguyen Dong Yen, New proof for a theorem of F. Giannessi, Journal of Optimization Theory and Applications, 68 (1991), 385 - 387.
17. 17. Le Tuan Hoa, The Gorenstein property depends upon characteristic for affine semigroup rings, Archiv der Mathematik, 56 (1991), 228 - 235.
18. 18. Le Tuan 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.
19. 19. Le Tuan Hoa, A note on projective monomial surfaces, Mathematische Nachrichten, 154 (1991), 183 - 188
20. 20. Le Tuan Hoa, On monomial $k$-Buchsbaum curves in $P^3$, Manuscripta Mathematica, 73 (1991), 423 - 436.
21. 21. Nguyen Quoc Thang, On the weak Hasse principle, Bulletin of the Polish Academy of Sciences, 39 (1991), 141 - 145
22. 22. Nguyen Quoc Thang, A note on the Hasse principle. Addenda, Acta Arithmetica, 59 (1991), 145 - 147.
23. 23. Effect of the subdivision strategy on convergence and efficiency of some global optimization algorithms, J. Global Optim. 1 (1991), 23 - 36
24. 24. Polyhedral annexation, dualization and dimension reduction technique in global optimization, J. Global Optim. 1 (1991), 229 - 244
25. 25. On the Cauchy problems for systems of partial differential equations with a distinguished variable, Numer. Funct. Anal. Optim. 12 (1991), 213 - 236
26. 26. 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
27. 27. 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
28. 28. On implicit function theorems for set-valued maps and their application to mathematical programming under inclusion constraints, Appl. Math. Optim. 24 (1991), 35 - 54
29. 29. New proof for a theorem of F. Giannessi, J. Optim. Theory Appl. 68 (1991), 385 - 387
30. 30. 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
31. 31. An algorithm for indefinite quadratic programming with convex constraints, Operations Resarch Letters 10 (1991), 323 - 327
32. 32. Some approximative problems for nonlinear inequalities, Uspekhi Matematicheskikh Nauk, 46 (1991)