  In this paper, we introduce a new concept of generalized convexity for
E-differentiable vector optimization problems. Namely, the notion of
exponentially E-invexity is defined. Further, some properties and results of
exponentially E-invex functions are studied. The sufficient optimality
conditions are derived under appropriate (generalized) exponentially E-invexity
hypotheses. To exemplify the application of our proposed concept, we have
included an appropriate example.
