Journal of the Australian Mathematical Society

Table of Contents - 1972 - Volume 13, Issue 02  

Research Article

Tight Riesz groups

R. J. Loya1 and J. B. Millera2

a1 Carleton University Ottawa

a2 Trent University Peterborough

The theory of partially ordered topological groups has received little attention in the literature, despite the accessibility and importance in analysis of the group Rm. One obstacle in the way of a general theory seems to be, that a convenient association between the ordering and the topology suggests that the cone of all strictly positive elements be open, i.e. that the topology be at least as strong as the open-interval topology U; but if the ordering is a lattice ordering and not a full ordering then U itself is already discrete. So to obtain in this context something more interesting topologically than the discrete topology and orderwise than the full order, one must forego orderings which make lattice-ordered groups: in fact, the partially ordered group must be an antilattice, that is, must admit no nontrivial meets or joins (see § 2, 10°).

(Received August 05 1969)

(Revised December 08 1969)