Abstract
Let f be a real-valued function on \((a,b) \subset {\mathbb {R}}\).
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Simon, B. (2019). Convexity, V: Strongly Operator Convex Functions. In: Loewner's Theorem on Monotone Matrix Functions. Grundlehren der mathematischen Wissenschaften, vol 354. Springer, Cham. https://doi.org/10.1007/978-3-030-22422-6_13
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