Algebra seminar day, Wednesday May 14, 2025

9h00 – 9h45: Professor Efim Zelmanov (Shenzhen International Center for Mathematics, China)

Title: On Growth and Complexity functions.

Abstract: I will discuss history and recent results concerning (i) growth functions of groups, algebras, monoids and languages, (ii) complexity functions of infinite sequences.

10h00 – 10h45: Professor Jiping Zhang  (Peking University)

Title: Sylow  numbers of finite groups

Abstract: The Sylow theorem is the fundamental theorem of finite groups and  gives the existence and the number of maximal p-subgroups (  the  so-called Sylow p-numbers, or simply Sylow  numbers). The composition of  Sylow  numbers was analyzed by Marshall Hall .  At the end of the 20th century the question arised what influence Sylow numbers have on properties of the given finite group.  Also  it is proved recently that the integral group ring  ZG of a finite soluble group G determines its Sylow numbers.

11h00 – 11h45: Professor Vyacheslav Futorny (Shenzhen International Center for Mathematics, China)

Title: Representations of Lie algebras of vector fields on algebraic varieties

Abstract:  Lie algebras of vector fields on affine algebraic varieties is a rich source of simple infinite dimensional Lie algebras. We will discuss state of the art of their representation theory.

  Hoạt động tuần
Xuất bản mới
La Văn Thịnh, Hoàng Thế Tuấn, On the Mittag–Leffler Stability of Mixed-Order Fractional Homogeneous Cooperative Delay Systems, Vietnam Journal of Mathematics, Volume 54, pages 773–789 (2026)
Đỗ Minh Thắng, Sonja Hannibal, Arnulf Jentzen, Non-convergence to global minimizers in data driven supervised deep learning: Adam and stochastic gradient descent optimization provably fail to converge to global minimizers in the training of deep neural networks with ReLU activation, Journal of Mathematical Analysis and Applications, 564 (2026) 130724
Le Thi Hong Hanh, Dương Trọng Luyện, Nguyễn Minh Trí, Nontrivial Solutions to Boundary Value Problems for Semilinear $\Delta ^{\alpha ,\beta }_{\alpha _1,\beta _1}$-Differential Equations, Analysis and PDE in Developing Countries, Trends in Mathematics (TM, volume 17) (2026) pp 27–35, Birkhäuser/Springer, Cham, 2026 ISBN: 978-3-032-14210-8; 978-3-032-14211-5