Hello! I was wondering why x^{4} was not strongly convex. My understanding of strongly convex is that convex + gradient not grows asymptotically to 0 in an interval while strictly convex is convex + gradient not equals to 0 in an interval... Thanks very much for any help!

## Q4 2020

Hello! I was wondering why x^{4} was not strongly convex. My understanding of strongly convex is that convex + gradient not grows asymptotically to 0 in an interval while strictly convex is convex + gradient not equals to 0 in an interval... Thanks very much for any help!

C.f. this subject : https://www.oknoname.com/EPFL/CS-439/topic/1996/some-questions-on-2020-exam/

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