Frobenius endomorphism (or "Frobenius' endomorphism") is a mathematical concept which is used to describe how shapes can be changed from one form to another. It is named after the German mathematician Ferdinand Frobenius.
In mathematics, an endomorphism is a special kind of transformation. It is a type of mapping or function which takes one shape and turns it into another one. The Frobenius endomorphism is a particular example of this and it is used for changing shapes in two-dimensional space.
Think of a square on a piece of paper. If you use the Frobenius endomorphism to transform it, you can make it a different shape, without changing its size. The new shape might be an octagon, a triangle, or something completely different. It all depends on which direction you choose to transform the square in.
The Frobenius endomorphism is an important tool in mathematics and is used to help solve certain problems.