modified Bessel function
type: Concept
preferred label: تابع بسل تعدیل یافته @fa
related: Lommel differential equation

Lommel function
type: Concept
broader: Lommel differential equation
preferred label: تابع لومل @fa

Lommel polynomial
type: Concept
broader: Lommel differential equation
preferred label: چندجمله‌ای لومل @fa

Lommel differential equation
type: Concept
broader: Bessel differential equation
narrower: Lommel polynomial
narrower: Lommel function
preferred label: معادله دیفرانسیل لومل @fa
related: modified Bessel function

Bessel differential equation
type: Concept
narrower: Lommel differential equation
preferred label: معادله دیفرانسیل بسل @fa