Ekici, Erdal2025-01-272025-01-2720081584-2851https://hdl.handle.net/20.500.12428/28981We introduced and studied the notions of contra e*-continuous functions, contra e-continuous functions and contra a-continuous functions via e*-open sets, e-open sets and a-open sets, respectively. Some properties and several characterizations of these types of functions are investigated.eninfo:eu-repo/semantics/closedAccesscontra continuitycontra e*-continuitycontra e-continuitycontra a-continuityArticle2413745N/AWOS:0002585296000052-s2.0-77954265264Q1