I'm an undergrad student with a publication in computer science, and will possibly have another one in control theory (involving exterior differential systems) by the end of the year... What I really want to study at the grad level is pure math however. Would my publication(s) help my application at all, or do math admission committees not care for anything but pure math work?
The Admissions Committee will definitely care. The papers guarantee that you have research experience. The papers also indicate that you have breadth, a very desirable quality.