His mathematical work included algebra, algebraic geometry, synthetic geometry, elliptic functions and the theory of convergence. However his most important contribution was the book An introduction to the algebra of quantics which was first published in 1895.
Matematiko kanyang trabaho kasama algebra, algebraic geometry, geometry gawa ng tao, tambilugin function at ang teorya ng mga tagpo. Subalit ang kanyang pinakamahalagang kontribusyon ay ang mga libro Isang pagpapakilala sa algebra ng quantics na kung saan ay unang inilathala sa 1895.