應(yīng)yl7703永利官網(wǎng)楊璐教授和李新華副教授的邀請(qǐng),美國新墨西哥礦業(yè)理工大學(xué)王碧祥教授將于2024年6月17日至25日訪問蘭州大學(xué),并于2024年6月18日進(jìn)行學(xué)術(shù)報(bào)告。
報(bào)告題目:Large Deviations of Fractional StochasticEquations on
Unbounded Domains
時(shí)間:2024年6月18日(星期二)上午9:00
地點(diǎn):城關(guān)校區(qū)理工樓631報(bào)告廳
報(bào)告摘要:In this talk, we discuss the large deviation principle of the non-local fractional stochasticreaction-diffusionequations with a polynomial drift of arbitrary degree driven by multiplicative noise defined on unbounded domains. We first prove the strong convergence of the solutions of a control equation with respect to the weak topology of controls, and then show the convergence in distribution of the solutions of the stochastic equation when the noise intensity approaches zero. We finally establish the large deviations of the stochastic equation by the weak convergence method. The main difficulty of the paper is caused by the non-compactness of Sobolev embeddings on unbounded domains, and the idea of uniform tail-ends estimates is employed to circumvent the obstacle in order to obtain the tightness of distribution laws of thestochastic equation and the precompactness of the control equation.
歡迎廣大師生光臨!
報(bào)告人簡介
王碧祥,美國新墨西哥礦業(yè)理工大學(xué)數(shù)學(xué)系終身教授,博士生導(dǎo)師,于蘭州大學(xué)獲理學(xué)學(xué)士、碩士與博士學(xué)位。曾在北京應(yīng)用物理與計(jì)算數(shù)學(xué)研究所和美國楊百翰大學(xué)從事博士后研究工作,在美國堪薩斯大學(xué)擔(dān)任訪問助理教授。
王碧祥教授主要從事確定與隨機(jī)動(dòng)力系統(tǒng)和非線性偏微分方程理論與應(yīng)用等領(lǐng)域的研究,是國際無窮維動(dòng)力系統(tǒng)代表性學(xué)者之一。目前已發(fā)表SCI論文150余篇,研究主要成果發(fā)表于《Mathematische Annalen》,《Transactions of the American Mathematical Society》,《Journal of Functional Analysis》,《SIAM Journal on Applied Dynamical Systems》《Proceedings of the American Mathematical Society》,《Journal of Differential Equations》,《Science China Mathematics》,《Stochastic Processes and their Applications》,《Nonlinearity》,《Physica D: Nonlinear Phenomena》,《Journal of Dynamics and Differential Equations》等多個(gè)國際知名數(shù)學(xué)學(xué)術(shù)期刊上,研究成果已被國際同行引用6000余次(谷歌學(xué)術(shù)),并多次獲美國國家科學(xué)基金資助。
甘肅省高校應(yīng)用數(shù)學(xué)與復(fù)雜系統(tǒng)省級(jí)重點(diǎn)實(shí)驗(yàn)室
甘肅應(yīng)用數(shù)學(xué)中心
yl7703永利官網(wǎng)
萃英學(xué)院
2024年6月14日