TY - JOUR T1 - On the Number of Ultra L-topologies in the Lattice of L-topologies AU - , Pinky AU - Johnson, T.P. JO - Journal of Engineering and Applied Sciences VL - 13 IS - 12 SP - 4438 EP - 4441 PY - 2018 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2018.4438.4441 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2018.4438.4441 KW - L-topology KW -lattice KW - KW -complete atomic Boolean KW -lattice KW -ultra L-topology KW -membership KW -Boolean lattice AB - In this study, we investigate ultra L–topologies (dual atoms) in the lattice FX of all L–topologies on a given non empty set X when membership lattice L is a complete atomic Boolean lattice. All the ultra L–topologies and their number in the lattice FX are determined. ER -