报告题目:Multivariate multifractal spectrum of Lévy functions
报 告 人:廖灵敏教授(武汉大学)
报告时间:2025年4月20日 10:00-11:00
报告地点:格物楼302室
报告摘要:
Let b be a positive integer. A Lévy function with parameter s>0 is defined by the series of terms {bnx}/bns, where {·} is the fractional part. We study the level sets consisting of points of given Hölder exponents of a Lévy function and a translated Lévy function. The multivariate multifractal spectrum, i.e., the function for each couple of levels associated the Hausdorff dimension of the above level set, is determined. The proofs are based on the studies of Diophantine approximation of b-adic rational numbers. This is a joint work with Stéphane Jaffard and Qian Zhang.
报告人简介:
廖灵敏,武汉大学数学与统计学院教授,国家级青年人才获得者。2008年获法国Picardie大学及武汉大学博士学位,2010年获法国东巴黎大学终身教职,2022年入职武汉大学。主要从事分形几何,动力系统,度量数论等方面的研究。在J. Eur. Math. Soc.,Math. Ann.,Adv. Math.等在内的国际期刊发表论文40余篇。