Intersection Patterns: an unexpected application of the Erdos-Falconer distance problem

Người báo cáo: Phạm Văn Thắng (ĐHKHTN Hà Nội)

Time: 9:30 -- 11:00, June 7th, 2023.

Venue: Room 612, A6, Institute of Mathematics, VAST

Abstract: Let $A$ and $B$ be compact sets in $mathbb{R}^d$. One of the fundamental problems in Geometric Measure Theory is to study the relations between the Hausdorff dimensions of $A$, $B$, and $Acap f(B)$, where $f$ runs through a set of transformations. Many mathematicians have studied this type of question intensively, including Bishop, Elekes, Falconer, Mattila, Kahane, Keleti, Peres.... In this talk, I discuss recent results on the discrete analog of this topic. Our approach is based on a number of techniques including algebraic methods and discrete Fourier Analysis. This is joint work with Semin
Yoo (KIAS, Korea).

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Nguyễn Huyền Mười, Vũ Ngọc Phát, New design of robust $H_\infty$ controllers for descriptor discrete time-varying delay equations with bounded disturbances, Transactions of the Institute of Measurement and Control, 48(2026), 87-97 (SCI(-E); Scopus) .
Lê Xuân Thanh, Lê Dũng Mưu, Nguyễn Văn Quý, A Dual Approach Based Extragradient-Type Method for Solving Quasi-Equilibrium Problems, Journal of Optimization Theory and Applications, Volume 208, article number 59, (2026) .
Vũ Thị Hướng, Ida Litzel, Thorsten Koch, Similarity-based fuzzy clustering scientific articles: Potentials and challenges from mathematical and computational perspectives, Journal of Nonlinear and Variational Analysis 10, 381-401 (2026). (SCI-E, Scopus) .