معادله دوهمساز نوع اول
preferred label: biharmonic equation of the first kind @en
type: Concept
related: مسئله دوهمساز نوع اول

مسئله دوهمساز نوع اول
related: معادله دوهمساز نوع اول
broader: مسئله دوهمساز
preferred label: biharmonic problem of the first kind @en
type: Concept

مسئله دوهمساز
preferred label: biharmonic problem @en
type: Concept
narrower: مسئله دوهمساز نوع اول