Let ℝn be a real n-dimensional space, let {A(x) | x ∈ X} be a family of m = |X| linear operators in ℝn, and let Kr be a sharp polyhedral cone formed by a set of rvectors, Kr ⊂ ℝn. Let Kr be invariant under {A(x) | x ∈ X}, ...
Charges μ taking values in a field F and defined on orthomodular partially ordered sets (logics) of all projectors in some finite-dimensional linear space over F are considered. In the cases where F is the field of rational ...