TY - JOUR AU - Pachón Rubiano, Néstor Raúl PY - 2021/03/04 Y2 - 2024/03/29 TI - Regularity and normality in ideal bitopological spaces JF - Proyecciones (Antofagasta, On line) JA - Proyecciones (Antofagasta, On line) VL - 40 IS - 2 SE - DO - 10.22199/issn.0717-6279-2021-02-0026 UR - https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/4162 SP - 425-445 AB - <p><em>We introduce, and study, the regularity and normality in ideal bitopological spaces, absent subject in literature. Our definitions have the advantage of using only the open sets of the two underlying topologies. These new concepts represent generalizations of Kelly's concepts of pairwise regularity and pairwise normality. The extension of the T<sub>0</sub>, T<sub>1</sub> and T<sub>2</sub> axioms to these spaces is due to Caldas et al.</em></p> ER -