Skew and direct sums of permutations

In the context of group theory and specifically permutations, the terms "skew" and "direct sums" can relate to how we combine or relate different permutation groups or works within them. ### Skew of Permutations "Skew" isn't a standard term strictly associated with permutations in the same way that "direct sum" is, but it may refer to a concept such as a "skew product".