Encyclopedia of Operations Research and Management Science

2001 Edition
| Editors: Saul I. Gass, Carl M. Harris

SEMI-STRICTLY Quasi-concave function

Reference work entry
DOI: https://doi.org/10.1007/1-4020-0611-X_933
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Given a function f(·) and points x, yX, with xy and X convex, if f (y) > f(x) implies that fx > (1 − λ)y) > f (x) for all 0 < λ < 1, then we say that f is a semi-strictly quasi-concave function. Concave function; Convex function; Quasi-concave function; Quasi-convex function; Strictly quasi-concave function; Strictly quasi-convex function.

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© Kluwer Academic Publishers 2001

Authors and Affiliations

  1. 1.Robert H. Smith School of BusinessUniversity of MarylandCollege PartUSA
  2. 2.School of Information Technology & EngineeringGeorge Mason UniversityFairfaxUSA