# Colloquium Lectures

How accurate are solutions of optimal control problems? | ||||

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### Highlights

20/11/19, Conference: The IMH School Introduction to Algebraic Schemes and Cohomology |

22/11/19, Colloquium Lecture: Berkovich spaces over Z and convergent arithmetic power series |

02/12/19, Conference: School “INVERSE PROBLEMS” |

04/12/19, Conference: Hội nghị Đại số-Lý thuyết số-Hình học và Tô pô 2019 |

09/12/19, Conference: Workshop Quốc tế về Hình học và Tổ hợp |

13/12/19, Colloquium Lecture: How to escape the curse of dimensionality in combinatorics |

20/12/19, Colloquium Lecture: Algebraic surfaces with minimal Betti numbers |

17/02/20, Conference: SEAMS school “Arithmetic, Geometry and Model Theory” |

04/03/20, Conference: MIS-IMH research school on Mathematics of Data |

### New Scientiffic Publications

- Doan Trung Cuong, The maximal dimension of formal fibers of local rings of an algebraic scheme of finite type, Journal of Algebra and Its Applications 18 (2019) 1950120 (15 pages), SCI(-E); Scopus.
- Nguyen T. Thanh, Vu Ngoc Phat, Improved approach for finite-time stability of nonlinear fractional-order systems with interval time-varying delay, IEEE Transition on Circuits Systems II: Express Brief, 66 (2019), 1356-1360, 2019, SCI(-E).
- 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, Scopus.