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Mar 15, 2022 at 14:44 vote accept Gab
Sep 8, 2018 at 18:27 vote accept Gab
Mar 15, 2022 at 14:44
Aug 23, 2018 at 21:23 comment added Abhishek Halder @ Frederico: I agree.
Aug 23, 2018 at 7:24 comment added Federico Poloni Good idea, but it is not a complete solution: you have to choose the $U_i$ appropriately so that $A_i$ and $K$ are positive definite, and that does not seem immediate to do.
Aug 22, 2018 at 23:58 history answered Abhishek Halder CC BY-SA 4.0