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        "event_title":"Student Algebraic Geometry: Birational rigidity and rationality",
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        "combined_title":"Student Algebraic Geometry: Birational rigidity and rationality: Zhi Zheng",
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        "description":"A fundamental problem in algebraic geometry is to determine which varieties are rational, that is, birational to the projective space. The Noether-Fano method for proving non-rationality is based on the idea that a Fano variety birationally equivalent to another in a nontrivial way must admit a \u201cvery singular\u201d linear system. In this talk, we will introduce this method and prove that no smooth quartic threefold is rational.",
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        "event_title":"Li Ka Shing Endowed Professorship",
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        "combined_title":"Li Ka Shing Endowed Professorship: Honoring Zhen Xu, Li Ka Shing Endowed Professor, Biomedical Engineering and Professor Radiology and Neurosurgery",
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