@article{MAKHILLJEAS2018131216362, title = {On the Number of Ultra L-topologies in the Lattice of L-topologies}, journal = {Journal of Engineering and Applied Sciences}, volume = {13}, number = {12}, pages = {4438-4441}, year = {2018}, issn = {1816-949x}, doi = {jeasci.2018.4438.4441}, url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2018.4438.4441}, author = {Pinky and}, keywords = {L-topology,lattice,,complete atomic Boolean,lattice,ultra L-topology,membership,Boolean lattice}, abstract = {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.} }