Ali Barani - Department of Mathematics, Faculty of Science, Lorestan University, Khorramabad, Iran. barani.a@lu.ac.ir

In this paper relation between pseudoconvex and quasi convex functions is introduced in the context of Riemannian manifolds. In this setting first order characterization of pseudoconvex (strongly pseudoconvex) functions is obtained.

Pseudoconvex functions, quasiconvex functions, Riemannian manifolds