Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative. If ...

Let A be a function algebra on a locally compact Hausdorff space. A linear isometry T: A → A is said to be of codimension 1 if the range of T has codimension 1 in A. In this paper, we provide and ...