Abstract：In this talk, I will discuss some recent results about classifying automorphism groups of smooth hypersurfaces in the projective space. This talk is based on joint works with Keiji Oguiso, Li Wei, Song Yang, and Zigang Zhu
AbstractAfter presenting an intrinsic description of the geometry of null hypersurfaces, we show howEinstein's equations, that is, the Raychaudhuri and Damour eguations, can be recast as theconservation law of a Carrolian stress tensor. We then derive the symplectic structure and computethe kinematic Poisson bracket of elementary fields. These comprise the spin-0 area and surfacetension, the sp...
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