The core of his research program was now set in place: number theory; infinitary analysis including its emerging branches, differential equations and the calculus of variations; and rational mechanics.
Ang buod ng kanyang mga pananaliksik na programa ay naka-set na ngayon sa lugar: number theory; infinitary pagtatasa nito kasama na ang umuusbong na sanga, kaugalian equation at ang calculus ng mga pagkakaiba-iba; at katuwiran mechanics.