@article{Caldas Cueva_Jafari_2017, title={Weak forms of continuity and openness}, volume={35}, url={https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/1220}, DOI={10.4067/S0716-09172016000300006}, abstractNote={<em style="font-family: verdana; font-size: small; text-align: justify;">Some new class of functions, called somewhat δ-precontinuous, somewhat δ-preopen and hardly δ-preopen functions, have been defined and studied by utilizing δ-preopen sets. Moreover, characterizations and properties of these functions are presented.</em>}, number={3}, journal={Proyecciones (Antofagasta, On line)}, author={Caldas Cueva, Miguel and Jafari, Saeid}, year={2017}, month={Mar.}, pages={289-300} }