Suppose that $f_1(x), ..., f_n(x)$ are strongly convex functions on $\mathbb{R}^n$. Then, is it true that $\log\left(\sum_{i=1}^n \exp(f_i(x)) \right)$ is also strongly convex?
2026-05-15 20:15:10.1778876110
Strong convexity composition rule with log sum exp
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