Page boy (wedding attendant) Page boy (wedding attendant) A page boy is a young male attendant at a wedding or cotillion, a social dance. This type of wedding attendant is less common than it used to be, but is still a way of including young relatives or the children of relatives and friends in a wedding. A page is often seen at British royal weddings. There may be many pages for effect at cotillions. Traditionally, page boys carry the bride's train, especially if the bride is wearing a dress with a long train. Because of the difficulty of managing the train, page boys are
Rank of a group defined as the "largest" cardinality of "X" such that there exists an onto homomorphism "G" → "F"("X"). Unlike rank, co-rank is always algorithmically computable for finitely presented groups, using the algorithm of Makanin and Razborov for solving systems of equations in free groups. The notion of co-rank is related to the notion of a "cut number" for 3-manifolds. If "p" is a prime number, then the "p"-rank of "G" is the largest rank of an elementary abelian "p"-subgroup. The sectional "p"-rank is the largest rank of an elementary abelian "p"-section (quotient of a subgroup). Rank of a group In the