Some Sufficient Conditions to Quasi-Convex Functions
Received:October 18, 2004  Revised:January 17, 2006
Key Words: quasi-convex   midpoint quasi-convex   measurability.  
Fund Project:the National Natural Science Foundation of China (10371024)
Author NameAffiliation
XU Ya-shan School of Mathematical Sciences, Fudan University, Shanghai 200433, China 
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Abstract:
      The concept of the midpoint quasi-convex function is introduced, and some conditions are obtained to ensure that midpoint quasi-convex function is quasi-convex in the measurable function space.
Citation:
DOI:10.3770/j.issn:1000-341X.2007.01.007
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