Hello all,(adsbygoogle = window.adsbygoogle || []).push({});

I am reading a paper and there is one bit in the paper that I am having a bit of trouble understanding.

Say V(a) is a convex function and then the paper has the following line:

[V(-2pi + a] + V(2pi + a]] >= 2V(a)

I am sure this relationship is simple and falls out somehow from the definition of convex functions but I am unable to convince myself of it.

I would be very grateful if someone can help me with figuring out why this relationship holds.

Many thanks,

Luca

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# Help with convex function properties

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