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
Tsen rank whenever "N" > "d". Algebraically closed fields are of Diophantine dimension 0; quasi-algebraically closed fields of dimension 1. Clearly if a field is T then it is C, and T and C are equivalent, each being equivalent to being algebraically closed. It is not known whether Tsen rank and Diophantine dimension are equal in general. Tsen rank In mathematics, the Tsen rank of a field describes conditions under which a system of polynomial equations must have a solution in the field. The concept is named for C. C. Tsen, who introduced their study in 1936. We consider a system of