TOPICS
Search

Uniform Convexity


To each epsilon>0, there corresponds a delta such that ||f-g||<epsilon whenever ||f||=||g||=1 and ||(f+g)/2||>1-delta. This is a geometric property of the unit sphere of space: if the midpoint of a line segment with endpoints on the surface of the sphere approaches the surface, then the endpoints must come closer together (Cheney 1999).


This entry contributed by Ronald M. Aarts

Explore with Wolfram|Alpha

References

Cheney, E. W. Introduction to Approximation Theory, 2nd ed. Providence, RI: Amer. Math. Soc., 1999.

Referenced on Wolfram|Alpha

Uniform Convexity

Cite this as:

Aarts, Ronald M. "Uniform Convexity." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/UniformConvexity.html

Subject classifications