معادله موج
preferred label: wave equation @en
type: Concept
narrower: معادله موج بیضوی

معادله موج بیضوی
related: معادله دیفرانسیل لامه
broader: معادله موج
preferred label: elliptic wave equation @en
type: Concept

معادله دیفرانسیل لامه
preferred label: Lame differential equation @en
type: Concept
related: معادله موج بیضوی