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比利时vs摩洛哥足彩
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比利时vs摩洛哥足彩
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university of california san diego
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math 258 - differential geometry
yongjia zhang
ucsd
ancient solutions to the ricci flow in low dimension
abstract:
ancient solution is a type of ricci flow that plays a fundamental role in singularity analysis. we introduce some results for ancient solutions, especially the classification of three-dimensional type i ancient solutions, and a rigidity theorem for the four-dimensional shrinking cylinder.
lei ni
october 11, 2017
3:00 pm
ap&m 7321
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