electrical field equation
preferred label: معادله میدان الکتریکی @fa
type: Concept
narrower: Einstein-Maxwell equation

cosmology
preferred label: کیهان شناسی @fa
type: Concept
related: Einstein-Maxwell equation

general relativity
preferred label: نسبیت عام @fa
type: Concept
related: Einstein-Maxwell equation

Einstein-Maxwell equation
related: cosmology
related: general relativity
broader: electrical field equation
preferred label: معادله انیشتین-ماکسول @fa
type: Concept