👉 The term "hamel" is a mathematical concept in linear algebra. It refers to a linear transformation from a vector space over a field F into itself, which is also known as a homomorphism or an automorphism. In other words, it is a mapping that preserves the operations of addition and scalar multiplication on vectors within the domain space.
The hamel structure is named after the mathematician Ernst Hamel, who introduced this concept in his book "Elements of Linear Algebra". The term is
hamel