Ha Tien Ngoan
Scientific CV
Address
Office: Building A5, Room 306
Tel: +84 (02)4 38361121 / 506
Email: htngoan AT math.ac.vn
Born in Nam Dinh in 1951
Education and academic degrees:
1974: 1974, Moscow Russia
1978: PhD, Moscow Russia
1991: Associate Professor
Research areas:
- Averaging PDEs whose coefficients depend on parameters,
- First-order PDEs,
- Hyperbolic and elliptic Monge-Ampere equations.
Scientific Publications
Publications
- 1. Duong Trong Luyen, Ha Tien Ngoan, Phung Thi Kim Yen, Existence and non-existence of solutions for semilinear bi $-\Delta_\gamma-$Laplace equation, Bulletin of the Malaysian Mathematical Sciences Society, 45 (2022), 819-838, (2022)
- 2. Tran Van Bang, Ha Tien Ngoan, Nguyen Huu Tho, Phan Trong Tien, Admissible solutions to augmented nonsymmetric k-Hessian type equations I. The d-concavity of the k-Hessian type functions, Journal of Mathematical Analysis and Applications, 504 (2021), 125401, (2021)
- 3. Ha Tien Ngoan, Thai Thi Kim Chung, Elliptic Solutions to Nonsymmetric Monge-Ampère Type Equations II. A Priori Estimates and the Dirichlet Problem, Acta Mathematica Vietnamica, 44 (2019), pp 723–749 (2019)
- 4. Ha Tien Ngoan, Thai Thi Kim Chung, Elliptic Solutions to Nonsymmetric Monge-Ampère Type Equations I: the d-Concavity and the Comparison Principle, Acta Mathematica Vietnamica, 44 (2019) pp 469–491 (2019)
- 5. Nguyen Van Ngoc, Ha Tien Ngoan, Nguyen Thi Ngan, Solvability of Some Classes of Systems of Dual Integral Equations Involving Fourier Transforms, Acta Mathematica Vietnamica, 40 (2015), 653-669 (2015)
- 6. Ha Tien Ngoan, Nguyen Huy Hoang, The Wronskian solutions of a nonlinear evolution equation, . Interactions between real and complex analysis, 369–407, Sci. Technics Publ. House, Hanoi, 2012. (2012)
- 7. Ha Tien Ngoan, Nguyen Van Ngoc, Pseudo-differential operators related to Halkel transforms and application to dual integral equations, In: Algebraic Structures in Partial Differential Equations Related to Complex and Clifford Analysis, Ho Chi Minh City University of Education Press (2010), 249 -- 271 (2011)
- 8. Ha Tien Ngoan, Nguyen Huy Hoang, The Wronskian solutions of the Sine-Gordon equation, , In: Algebraic Structures in Partial Differential Equations Related to Complex and Clifford Analysis, Ho Chi Minh City University of Education Press (2010) 171 -- 208. (2011)
- 9. Ha Tien Ngoan, On characteristic systems for general multidimensional Monge-Ampere equations, Acta Mathematica Vietnamica 36 (2011), 330 -- 344 (2011)
- 10. Ha Tien Ngoan, The Wronskian solutions of the modified Korteweg-de Vries, Acta Mathematica Vietnamica36, 555 -- 583 (2011)
- 11. Ha Tien Ngoan, Nguyen Huy Hoang, On Wronskian solutions of the quadratic Sine-Gordon equation, In: Proceedings of the 4th International Conference on Research and Education in Mathematics, Kuala Lumpur Oct. 21-23 (2009), 12-19. (2009)
- 12. Ha Tien Ngoan, Nguyen Thi Nga, On the Cauchy problem for a quasilinear weakly hyperbolic system in two variables and applications to that for weakly hyperbolic classical Monge-Ampốre equations, In: Advances in deterministic and sto chastic analysis, 177--196, World Sci. Publ., Hackensack, NJ, 2007. (2007)
- 13. Ha Tien Ngoan, Nguyen Thi Nga, On the hyperbolicity of some systems of nonlinear first-order partial differential equations, Vietnam Journal of Mathematics, 34 (2006), 109 - 128. (2006)
- 14. Ha Tien Ngoan, Nguyen Thi Nga, On the Cauchy problem for multidimentional Monge-Ampere equation, Acta Mathematica Vietnamica, 29 (2004), 281 - 298. (2004)
- 15. Ha Tien Ngoan, Nguyen Thi Nga, On cauchy problem for hyperbolic Monge-Ampere equations, Journal of Science, Hanoi University of Education, Series Natural Sciences, 2002, N0 4, 3 - 10 (2002)
- 16. Nguyen Minh Chuong, Ha Tien Ngoan, Nguyen Minh Tri, Le Quang Trung, Partial Differential Equations, Education Publishing House, Hanoi, 2000, 331 pages (2000)
- 17. Nguyen Thi Nga, Ha Tien Ngoan, On cauchy problem for hyperbolic Monge-Ampere equations, In: Proceeding of the conference on partial differential Equations, Hanoi, December 27-29, 1999, 77 - 91. (1999)
- 18. Ha Tien Ngoan, Dexing Kong, Mikio Tsuji, Integration of Monge-Ampère equations and surfaces with negative Gaussian curvature, Annali della Scuola Normale Superiore di Pisa, Scienze Fis. e Math., Serie 4, 27 (1998), 309 - 330. (1998)
- 19. Ha Tien Ngoan, Hopf's formula for Lipschitz solutions of Hamilton-Jacobi equations with concave-convex Hamiltonian, Acta Mathematica Vietnamica, 23 (1998), 269 - 293. (1998)
- 20. Ha Tien Ngoan, MIko Tsuji, Integration of hyperbolic Monge-Ampère equations, In: Proceeding of Fifth Vietnamese Mathematical Conference, Hanoi, September 17 - 20, 1997, 205 - 212. (1997)
- 21. Ha Tien Ngoan, V. V. Jikov, S. M. Kozlov, O. A. Oleinik, Averaging and G-convergence for differential operators, Uspekhi Math. Nauk (USSR), 34 (1979), 65 - 133 (1979)
- 22. Ha Tien Ngoan, On the everaging problem for linear elliptic equations and systems with coefficients depending on a parameter, Ph. D. Thesis, Moscow State University, 1978, 117 pp (1978)
- 23. Ha Tien Ngoan, On the convergence of solutions of the boundary value problem for a sequence of elliptic equations, Uspekhi Math. Nauk (USSR), 32 (1977), 183 - 184 (1977)
- 24. Ha Tien Ngoan, On the convergence of solutions of the boundary value problem for a sequence of elliptic systems, Vestnik of Moscow University, Ser. Math. and Mechanics, (1977), 83 - 92 (1977)
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Do Duy Hieu, Block-pair edge community detection in bipartite networks via an adaptive spectral-modularity framework, Computational and Mathematical Organization Theory, Volume 32, article number 31 (2026)
Nguyen Thi Van Hang, Felipe Lara, Nguyen Dong Yen, Discontinuous strongly quasiconvex functions, Journal of Optimization Theory and Applications 210 (2026), Paper No. 40, 18 pp
Doan Trung Cuong, Le Thi Thanh Nhan, On the depth of the canonical module, Journal of Algebra, Volume: Volume 712 (2027), Pages: 416-435
Institute Lectures
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Periods and exponential periods
Speaker: Claude Sabbah (CNRS, École Polytechnique, Institut Polytechnique de Paris, France)