Аннотация:
We introduce and study the class of spherically ordered groups. Axioms of spherical orders used for these groups are examined and their (in)dependence is shown. The notions of spherically orderable groups and their spectra of spherical orderability are defined. Values of these spectra are found for a series of certain groups.
Ключевые слова:
spherical order, group, spectrum of spherical orderability.