The Rank Group and Rank España in Spain (10 bingo clubs). Rank is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. The company was formed to acquire the business interests of the Rank Organisation, which itself was formed out of the business interests of its founder, J. Arthur Rank. Until the start of the 21st century, the group still had a tremendous amount of leisure holdings; however, as the decade progressed it divested these interests, beginning with Pinewood Studios and the Odeon cinema chain. It also shed its engineering interests, such as its share in Rank
Prüfer rank seen that formula_3 will be equal to the "size of any minimal generating set" of formula_6. Those profinite groups with finite Prüfer rank are more amenable to analysis. Specifically in the case of finitely generated pro-p groups, having finite Prüfer rank is equivalent to having an open normal subgroup that is powerful. In turn these are precisely the class of pro-p groups that are p-adic analytic - that is groups that can be imbued with a p-adic manifold structure. Prüfer rank In mathematics, especially in the area of algebra known as group theory, the Prüfer rank of a pro-p group