講座主題:Asymptotic Properties of Delay Differential Systems with Wideband Noise Perturbations
主講人:吳付科
工作單位:華中科技大學(xué)
講座時(shí)間:2019年11月17日(周日)下午2:00--2:40
講座地點(diǎn):數(shù)學(xué)院非線性控制實(shí)驗(yàn)室118
主辦單位:煙臺(tái)大學(xué)數(shù)學(xué)與信息科學(xué)學(xué)院
內(nèi)容摘要:
Because a wideband noise is easily realized in applications and because it well approximates a white noise, this work focuses on delay differential equations subject to wideband noise perturbations. By using perturbed test function methods combined with martingale techniques, this paper shows that when the small parameter tends to zero, the underlying process converges to a limit that is governed by solutions of a stochastic delay differential equation. It is noticeable that this limit stochastic differential equation not only depends on the delay term, but also the second delay. Not only are the results interesting from a mathematical point of view, but also they will be of great utility to a wide range of problems in control and optimization problems.
主講人介紹:
吳付科,,華中科技大學(xué)教授,,博士生導(dǎo)師,,主要從事隨機(jī)微分方程以及相關(guān)領(lǐng)域的研究,,近年來(lái)主持5項(xiàng)國(guó)家自然科學(xué)基金(包括一項(xiàng)優(yōu)秀青年基金)和參加了多項(xiàng)國(guó)家自然科學(xué)基金項(xiàng)目(包括一項(xiàng)重點(diǎn)基金項(xiàng)目的研究),,2011年入選教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃,,2012年入選華中科技大學(xué)“華中學(xué)者”,,2014年獲得國(guó)家自然科學(xué)基金委員會(huì)優(yōu)秀青年基金的資助,,2015年獲得湖北省自然科學(xué)二等獎(jiǎng)(排名第二),,2017年獲得英國(guó)皇家學(xué)會(huì)“高級(jí)牛頓學(xué)者”基金,。迄今為止,在SIAM J. Appl. Math., SIAM J. Numer. Anal., SIAM J. Control Optim., Numer. Math. J. Differential Equations, Automatica和IEEE TAC等數(shù)學(xué)和控制學(xué)科國(guó)際權(quán)威期刊發(fā)表SCI論文80余篇,。