| Further work by G D Birkhoff introduced the concept of reducibility on which most later work rested. |
| This reading is bolstered by Alexander's discussion of the reducibility of chemistry to physics, on which he is neutral. |
| Development and implementation of a measuring device allowing to make an in-line estimate of the sinter reducibility on the ore sintering strand. |
| These he removed with his reinterpretation that removed the axiom of reducibility. |
| He gave a reducibility theorem for Riemann spaces which is fundamental in the development of Riemannian geometry. |
| Schur was also interested in reducibility, location of roots and the construction of the Galois group of classes of polynomials such as Laguerre and Hermite polynomials. |
