- Bruen chain
- цепь f Бруэна
English-Russian Dictionary on Probability, Statistics, and Combinatorics. — Philadelphia and Moscow. Society for Industrial and Applied Mathematics and TVP Science Publishers. K. A. Borovkov. 1994.
English-Russian Dictionary on Probability, Statistics, and Combinatorics. — Philadelphia and Moscow. Society for Industrial and Applied Mathematics and TVP Science Publishers. K. A. Borovkov. 1994.
Pi Beta Phi — Infobox Fraternity letters= ΠΒΦ name= Pi Beta Phi crest= founded= Birth date and age|1867|04|28 birthplace= Monmouth College, (Monmouth, Illinois) type= Social emphasis= scope= mission= vision= motto= maxim= colors= Wine and Silver Blue symbol=… … Wikipedia
Chester — For the larger local government district, see Cheshire West and Chester. For other uses, see Chester (disambiguation). Coordinates: 53°11′33″N 2°53′30″W / 53.192 … Wikipedia
Problem of Apollonius — In Euclidean plane geometry, Apollonius problem is to construct circles that are tangent to three given circles in a plane (Figure 1); two circles are tangent if they touch at a single point. Apollonius of Perga (ca. 262 BC ndash; ca. 190 BC)… … Wikipedia