give an example of a finite group g and a positive integer n such that n divides |g| but no action of g (on any set) can have an orbit of size n. prove that your answer has this property.

Respuesta :

he group g and the positive integer n = 3 satisfy the conditions given in the problem.

Let g be the 6th group isomorphic to the rotationally symmetric group of regular hexagons. Let n = 3.

Since |g| = 6, it is clear that n |g|. Split. However, the action of g on any set cannot have orbitals of magnitude 3. To see this, note that the order of each element of g is either 1, 2, or 3. If an element of g has degree 1, then its orbit under the action of g is the element itself with magnitude 1.

If the elements of g have degree 2, then the orbitals under the action of g have magnitude 2. If the elements of g have degree 3, then the orbitals under the action of g have magnitude 3. However, g only has order elements. Since it is of order 3 (that is, a rotation of 120 degrees), the effect of g cannot have an orbit of magnitude 3.

Hence, the group g and the positive integer n = 3 satisfy the conditions given in the problem.

Learn more about this on brainly.com/question/7201810

#SPJ4