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math.DG2026
Hypersurfaces with constant sectional curvature of a product of two space forms
Jihun Kim, Yuri Nikolayevsky, Ruy Tojeiro
We complete the classification of hypersurfaces with constant sectional curvature of dimension greater than or equal to three in the product of two space forms.
quant-ph2026
Phase Retrieval in Requires Exactly Eleven Measurements
Meng Huang, Jihun Kim
Determining the minimal number of intensity measurements required for phase retrieval in has been a long-standing open problem. Prior to this work, the best-known re…