2019

1. Curve-based monotonicity: a generalization of directional monotonicity

   International Journal of General Systems, Vol. 48, Núm. 5, pp. 523-553

2. Description and Properties of Curve-Based Monotone Functions

   Advances in Intelligent Systems and Computing

3. Directions of directional, ordered directional and strengthened ordered directional increasingness of linear and ordered linear fusion operators

   Proceedings of the 2018 IEEE Symposium Series on Computational Intelligence, SSCI 2018

4. Pointwise directional increasingness and geometric interpretation of directionally monotone functions

   Information Sciences, Vol. 501, pp. 236-247

5. Strengthened ordered directionally monotone functions. Links between the different notions of monotonicity

   Fuzzy Sets and Systems, Vol. 357, pp. 151-172