廣州數(shù)學(xué)大講壇第二期
第十三講——云南大學(xué)劉超教授學(xué)術(shù)報(bào)告
題目:Littlewood-type theorems for random Dirichlet multipliers
時(shí)間:2026年2月2日(星期一)下午15:30開始
地點(diǎn):理學(xué)實(shí)驗(yàn)樓312
報(bào)告人:劉超 教授
摘要:In this talk, we present a systematic study of random Dirichlet functions. In 1993, Cochran-Shapiro-Ullrich proved the following elegant result on random Dirichlet multipliers: For any $\sum_{n=0}^{\infty} a_n z^n \in \mathcal{D}$, the Dirichlet space over the unit disk, almost all of its randomizations $\sum_{n=0}^{\infty} \pm a_n z^n$ are multipliers of $\mathcal{D}$. We exploit Cochran–Shapiro -Ullrich's result and extend it in several directions.
報(bào)告人簡介:
劉超,博士畢業(yè)于復(fù)旦大學(xué)數(shù)學(xué)科學(xué)學(xué)院,現(xiàn)為云南大學(xué)數(shù)學(xué)與統(tǒng)計(jì)學(xué)院教授,研究方向是算子理論和隨機(jī)解析函數(shù)。主持國家自然科學(xué)基金青年項(xiàng)目、地區(qū)項(xiàng)目等國家級(jí)項(xiàng)目,論文發(fā)表于J. Funct. Anal., Int. Math. Res. Not., J. Geom. Anal., Proc. Amer. Math. Soc.等期刊。