Rouche theorem
type: Concept
broader: series expansion
preferred label: قضیه روشه @fa
related: piecewise smooth boundary

series expansion
type: Concept
narrower: Rouche theorem
preferred label: بسط سری @fa

piecewise smooth boundary
type: Concept
preferred label: مرز تکه تکه هموار @fa
related: Rouche theorem