標(biāo)題:Orbital stability of breathers in the modified Camassa-Holm equation
報(bào)告時(shí)間:2025年11月5日(星期三)16:00-17:00
報(bào)告地點(diǎn):線(xiàn)上騰訊會(huì)議(會(huì)議ID:613659273,會(huì)議密碼:251105,會(huì)議鏈接:https://meeting.tencent.com/dm/mfW2E4iOiM6M)
主講人:李驥
主辦單位:數(shù)學(xué)與統(tǒng)計(jì)學(xué)院
報(bào)告內(nèi)容簡(jiǎn)介:
The modified Camassa-Holm equation (mCH) with a cubic nonlinearity is an integrabel and nonlocal mathematical model for the unidirectional propagation of shallow- water waves. This study establishes the existence of time-periodic, spatially localized smooth-wave solutions, known as breathers, within a specific range of the linear dispersive parameter. By employing three rarely used conserved quantities, expressed in terms of the momentum variable m, it is demonstrated that breathers, as solutions to the mCH equation, are orbitally stable under perturbations in the Sobolev space H2.
主講人簡(jiǎn)介:
李驥,華中科技大學(xué)數(shù)學(xué)與統(tǒng)計(jì)學(xué)院教授,博士生導(dǎo)師,2008年本科畢業(yè)于南開(kāi)大學(xué)數(shù)學(xué)試點(diǎn)班,2012年在美國(guó)楊伯翰大學(xué)取得博士學(xué)位,后在明尼蘇達(dá)大學(xué)和密西根州立大學(xué)做博士后及訪(fǎng)問(wèn)助理教授,2016年加入華中科技大學(xué),入選國(guó)家青年人才項(xiàng)目。主要研究?jī)深?lèi)問(wèn)題:1.幾何奇異攝動(dòng)理論及應(yīng)用,尤其是斑圖的存在性,穩(wěn)定性,以及其分支和相關(guān)動(dòng)力學(xué)行為;2.擬線(xiàn)性淺水波多孤立子穩(wěn)定性問(wèn)題。在包括Math Ann,Adv Math,TAMS,JMPA,JFA,AnnPDE,JDE,PhyD等雜志發(fā)表論文40多篇。