rh/paper-1-arithmetic-apo RH paper 1 — arithmetic APO route Paper First selected RH paper focused on the arithmetic APO approach. PDF rharithmeticpdf Primary document PDF viewer Open PDF Loading scrollable PDF pages… If the embedded renderer is slow or blocked, use Open PDF for the full native viewer. This note wraps the first selected RH paper. Read with: rh/overview rh/paper-2-spectral-triple