Graduate School of
Science and Engineering

I specialize in number theory, and recently in particular classifying elliptic curves found in real quadratic fields. The cue to why I began to be interested in number theory was a book entitled “Fermat’s last theorem” that was written by my instructor Norio Adachi while I was at university (Waseda), and why I began to be interested in elliptic curves is that elliptic curve theory was used to solve Fermat’s last theorem. One of the great charms of number theory is its concreteness. Quadratic fields and elliptic curves are concrete and can be easily put into practice; however, they still involve lot of unsolved problems. My aim is to quickly solve those problems, and hence I hope students can be helpful.