Ekici, Erdal2025-01-272025-01-2720050037-87122175-1188https://doi.org/10.5269/bspm.v23i1-2.7462https://hdl.handle.net/20.500.12428/28874In this paper, we introduce and investigate a weaker form of R-maps and delta-continuous functions which is called almost delta-semicontinuity. We obtain its characterizations, its basic properties and their relationships with other types of functions between topological spaces.eninfo:eu-repo/semantics/openAccessdelta-semicontinuityR-mapdelta-continuityalmost delta-semicontinuityArticle231-2738410.5269/bspm.v23i1-2.7462N/AWOS:0004336771000062-s2.0-84881296323Q2