Let 𝑇 be a unital, continuous linear functional defined on complex Banach algebra 𝐴. First, we prove an approximate version of the Gleason-Kahane-Żelazko theorem: given ϵ > 0, there exists an 𝑀 > 0 ...
We construct multiplicative Green’s (or ∗Green’s) function for ∗Sturm-Liouville (∗SL) equation. The basic properties of ∗Green’s function are given. Then, ∗SL equation is evaluated by using ∗Green’s ...