@article{El-Monsef_Mahmoud_Nasef_2000, title={On quasi I-openness and quasi I-continuity}, volume={31}, url={https://journals.math.tku.edu.tw/index.php/TKJM/article/view/401}, DOI={10.5556/j.tkjm.31.2000.401}, abstractNote={A space $ (X,\tau,I)$ consisting of a nonempty set $ X$ with a topology $ \tau$ and an ideal $ I$ of subsets of $ X$ which has heredity and finite additivity properties. In this paper the quasi $ I$-open and quasi $ I$-closed sets are presented. Utilizing these new concepts the class of quasi $ I$-continuous functions have been obtained. Both of quasi $ I$-openness and quasi $ I$-continuity is considered as a generalization of those $ I$-openness and $ I$-continuity. However, numerous topological properties of these new notions have been discussed as well as many of their known results have been improved.}, number={2}, journal={Tamkang Journal of Mathematics}, author={El-Monsef, M. E. Abd and Mahmoud, R. A. and Nasef, A. A.}, year={2000}, month={Jun.}, pages={101–108} }