She continued to undertake mathematical research and wrote two further papers, this time on difference equations, which were published in 1905 and 1906.
Siya sa patuloy na magsagawa ng pananaliksik at matematika wrote dalawang karagdagang mga papeles, mga oras na ito sa pagkakaiba equation, na kung saan ay nai-publish sa 1905 at 1906.