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 Oct 2 awarded Good Question May 2 awarded Famous Question Jun 27 awarded Nice Question Mar 18 awarded Notable Question Oct 25 awarded Popular Question Dec 15 accepted The inequality about convex function and increasing convex function Dec 15 awarded Scholar Dec 15 accepted Find the upper and lower limits of $xf(x)$, as $x\rightarrow \infty$ Dec 15 revised Find the upper and lower limits of $xf(x)$, as $x\rightarrow \infty$ added 3 characters in body Dec 15 comment Find the upper and lower limits of $xf(x)$, as $x\rightarrow \infty$ @leo: I changed variables and calculated it using integration by parts. Dec 15 awarded Editor Dec 15 revised Find the upper and lower limits of $xf(x)$, as $x\rightarrow \infty$ added 1042 characters in body Dec 15 asked Find the upper and lower limits of $xf(x)$, as $x\rightarrow \infty$ Dec 14 comment The inequality about convex function and increasing convex function Then this is true? : Since $g$ is increasing, $g(f(\lambda x+(1-\lambda)y)) \le g(\lambda f(x)+(1-\lambda)f(y))$. Dec 14 asked The inequality about convex function and increasing convex function Dec 14 awarded Student Dec 14 asked Proof of “every convex function is continuous”