He had already published two papers prior to submitting his Master's thesis, one was On the determination of singular points of analytic functions while the second was published in France and was on singular points of certain differential equations .
Siya ay nai-publish na ang dalawang mga papeles bago sa pagsusumite ng kanyang Master's sanaysay, ang isa ay ang pagpapasiya ng isahan puntos ng analytic function habang ang pangalawa ay na-publish sa Pransya at sa isahan puntos ng ilang mga kaugalian equation.