| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4660117 | Topology and its Applications | 2011 | 6 Pages |
Abstract
This paper gives an account of the contributions of Melvin Henriksen and John Isbell to the abstract theory of f-rings and formally real f-rings, with particular attention to the manner in which their work was framed by universal algebra. I describe the origins of the Pierce–Birkhoff Conjecture and present some other unsolved problems suggested by their work.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
