Farzaneh Falahati-Nezhad - Department of Mathematics, Safadasht Branch, Islamic Azad University, Tehran, Iran

New fuzzy graph can be constructed from two given fuzzy graphs applying graph operations. In this paper, we proceed to obtain new fuzzy graphs from some forgotten operations and investigate theconcept of M-strong fuzzy graphs for them. All properties are illustrated with examples

fuzzy graph, deleted lexicographical product, disjunction, M-strong fuzzy graph