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On Eells-Sampson type theorems for subellipitic harmonic maps

發(fā)布時間:2021-06-30 瀏覽:次

On Eells-Sampson type theorems for subellipitic harmonic maps

報告人: 東瑜昕

講座日期:2021-07-05

講座時間:09:00

報告地點:騰訊會議(ID935 103 616

講座內(nèi)容簡介:

In this talk, we discuss critical maps of a horizontal energy functional for maps from a sub-Riemannian manifold to a Riemannian manifold. These critical maps are referred to as subelliptic harmonic maps. In terms of the subelliptic harmonic map heat flow, we investigate the existence problem for subelliptic harmonic maps. Under the assumption that the target Riemannian manifold has non-positive sectional curvature, we are able to establish some Eells-Sampson type existence results, and also some Hartman type results for the flow.

講座人簡介:

東瑜昕,復(fù)旦大學數(shù)學科學學院教授,博士生導師,主要研究領(lǐng)域為整體微分幾何,、復(fù)幾何與CR幾何。1990年在浙江大學獲得博士學位,,導師為著名數(shù)學家白正國教授與沈一兵教授,;1990-2000年在浙江大學數(shù)學系任教,,2000年至今在復(fù)旦大學數(shù)學學院任教,。主持多項國家自然科學基金項目,,在PLMS, JGP, JGA, CMP等一流數(shù)學期刊發(fā)表40余篇高水平學術(shù)研究論文。