Tamotsu Ikeya’s most recent, aptly titled show, “Basic Lesson Preparation and Review,” indexed both the artist’s earlier investigations of color and his current (and evolving) interest in actual space. Ikeya put these lessons to use attempting to conceptualize color as a means of generating space. The first glimpse of the gallery’s vast interior presented a pair of large untitled two-tone canvases (all works 2009)—one red and orange, the other blue and green; ten more paces toward the back wall opened up a view of a third painting (the same dimensions as the first two and also untitled) in black