Linked from
The 21 pages that link to Differential rotation, each with the reason it gives.
Stellar rotationBroader topic: Many stars rotate faster near the equator than near the poles.
Orion ArmRelated: The Milky Way’s varying rotation rates affect the shape and winding of its arms.
Unbarred spiral galaxyRelated: It shapes disk structure and winds material around galactic centers.
Von Zeipel theoremCompared with: It violates uniform rotation, a condition underlying the theorem.