I am a recent mathematics graduate from the UK who will apply to math PhD programs in the United States.
I completed a master's in pure mathematics at a top program in the UK focusing on geometry. I am thinking about what to write in my statement of purpose. I want to write about my academic journey and include how I have thought about the subject more broadly. For example one of the paragraphs in the statement of purpose is: "I have seen an interesting phenomenon where for smooth manifolds its global geometry is related to its local geometry. For instance, in my third-year project, I wrote about the Chern-Gauss-Bonnet theorem. This theorem states that for even-dimensional manifolds the Euler class (a characteristic class calculated from the curvature of a connection on the tangent bundle) is related to the Euler characteristic (as defined by the Betti numbers). This is a fascinating result."
I am unsure if I am making a mistake talking about this.
There are other such paragraphs in there. There are also the usual statement of purpose paragraphs like explaining contextual information, what my plans are, why I want to do a PhD...
Thank you.