江蘇省應用數學(中國礦業大學)中心系列學術報告
報告題目:The application of bidifferential calculus in integrable systems
報告時間:2023年 11月16日11:00-11:40
報告人:張翼浙江師範大學教授、博士生導師
伟德bvA302室 騰訊會議:會議 ID: 387-266-3917
摘要:In this talk, in the framework of bidifferential calculus, we investigate the integrable systems via a matrix version of the binary Darboux transformation which involves a Lyapunov equation. With a spectral matrix of the form of diagonal and vanishing seed solutions, the corresponding matrix solution of the Lyapunov equation is given, which can contain zero entries, which should be helpful for further explorations of the solutions of equations with this method. From vanishing and nonvanishing seed solutions, abundant soliton solutions are provided corresponding to a spectral matrix of the form of a Jordan block. In particular, based on the properties of nilpotent matrices, we construct the semirational rogue wave solutions, which can demonstrate the coexistence of rational rogue wave and bright/dark soliton.
報告人簡介: 張翼,浙江師範大學數學科學學院教授,博士生導師,浙江師範大學動力系統與非線性科學研究中心主任。浙江省應用數學研究會副監事長;中國優選法統籌法與經濟數學研究會理事;國家科學技術獎自然科學獎以及多個省市自然科學獎評審專家;科技部數學專項、教育部學位中心評審專家。主要研究方向為孤立子理論與可積系統。曾在美國南佛羅裡達大學、阿拉巴馬大學、香港中文大學、日本九州大學等多所大學訪問。主持過多項國家自然科學基金項目及浙江省自然科學基金研究項目;獲得過浙江省科學技術進步獎一等獎和浙江省人民政府優秀教學成果二等獎。在SCI 源刊雜志上發表論文150餘篇。