应304am永利集团官网王智诚教授的邀请,南京理工大学王婧教授将于2023年6月18日-6月20日与我校有关师生进行在线学术研讨,其中6月19日举行专题学术报告。
报告题目: ABSOLUTE CONTINUITY OF THE INTEGRATED DENSITY OF STATES IN THE LOCALIZED REGIME
时 间:6月19日10:00.
地 点:城关校区理工楼 631室
报告摘要:We establish the absolute continuity of the integrated density of states (IDS) for quasi-periodic Schr\"odinger operators with a large trigonometric potential and Diophantine frequency. This addresses Eliasson's open problem in 2002, partially solving it. Furthermore, this result can be extended to a class of quasi-periodic long-range operators on $\ell^2(\Z^d)$. Our proof is based on stratified quantitative almost reducibility results of dual cocycles. Specifically, we establish that a generic analytic one-parameter family of cocycles, sufficiently close to constant coefficients, is reducible except for a zero Hausdorff dimension set of parameters. This result affirms Eliasson's conjecture in 2017. This is a joint work with X. Xu, Q. Zhou, and J. You.
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报告人简介
王婧,南京理工大学教授、博士生导师。主要从事拟周期动力系统方面的研究。在Adv. Math., Comm. Math. Phys., J. Differ. Equ., J. Funct. Anal., Trans. Amer. Math. Soc.等期刊发表论文多篇,先后主持国家自然科学基金青年项目和面上项目,青年科学家项目,以及江苏省基础研究计划青年基金和优秀青年基金项目,获得第七届“江苏省数学成就奖”。
甘肃应用数学中心
甘肃省高校应用数学与复杂系统省级重点实验室
304am永利集团官网
萃英学院
2023年6月15日