Dimension Of Fabry Estimated

At first,to the dimention estimating of a kind of function, we introduce some very good conclutions . Then define the upper Bouligand dimension and the lower Bouligand dimension of a class of functions with the form f(x, y) — aj cos(λj|x + y|),and give the image when its upper Bouligand dimention and lower Bouligand dimention are not the same.