Characterizations of upper and lower (α, β, θ, δ, I)-continuous multifunctions

Given a multifunction F : (X; _ ) ! (Y; _), _; _ oper-ators on (X; _ ), _; _ operators on (Y; _) and I a proper ideal on X. The purpose of the present paper is to introduce, study and characterize upper and lower (_; _; _; _; I)-continuous multifunctions, its relation with another class of continuou...