Nyuwa mends the epigraph

Nyuwa, the mother goddess of Chinese mythology, mends the sky according to an ancient Chinese legend. Today, Nyuwa is asked to mend the epigraph of a continuous function over an open set so that the function becomes convex. What can we say about this?

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Author:Gee Law’s Blog
link:https://geelaw.blog/entries/nyuwa-mends-the-epigraph/?utm_source=feed&utm_medium=rss