Invex and quasi-invex ncp functions and their properties

Izhar Ahmad*, Shiv K. Gupta, Bhupendra K. Mishra

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A class of invex nonlinear complementarity (NCP) functions is introduced. The existence of such a function is illustrated by citing nontrivial examples. Some interesting properties of invex NCP functions have been developed. Quasi-invex NCP functions and their properties are also presented.

Original languageEnglish
Pages (from-to)177-183
Number of pages7
JournalMaejo International Journal of Science and Technology
Issue number2
StatePublished - 1 May 2020

Bibliographical note

Funding Information:
The first author was financially supported by King Fahd University of Petroleum and Minerals, Saudi Arabia, under the Internal Research Project no. IN171012.

Publisher Copyright:
© 2020 by Maejo University, San Sai, Chiang Mai, 50290 Thailand.


  • Invex functions
  • Nonlinear complementarity function
  • Stationary point

ASJC Scopus subject areas

  • General


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