(1) Among his many mathematical achievements can be included profound discoveries in logic, algebra and differential equations.(2) He had a distinguished career as a math professor, specializing in algebra , algebraic geometry and number theory.(3) courses in algebra, geometry, and Newtonian physics(4) He failed in his application for the chair of algebra and number theory at Uppsala University.(5) We have looked briefly at Zorn's contributions to algebra and to set theory.(6) He wrote several books on arithmetic, algebra , geometry and astronomy.(7) Ernst SchrÔö£├éder's important work is in the area of algebra , set theory and logic.(8) It was an exciting time with increasing mathematical activity in algebra .(9) Wall's research is mostly in the area of geometric topology and related algebra .(10) Mill only deals with geometry, arithmetic, and some algebra , not the branches of higher mathematics.(11) It is devoted mainly to arithmetic and algebra , with just a few problems on geometry and mensuration.(12) The book contained the elements of geometry and algebra in addition to the calculus.(13) He worked on algebra and graph theory, combining the two to produce his first outstanding contribution to matroid theory.(14) Aitken's mathematical work was in statistics, numerical analysis, and algebra .(15) algebra problem(16) I do not doubt that this is the most important work on general algebra that the Annalen has ever published.