quadruple lattice
1chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …
2County class cruiser — For the pre–World War I armoured cruisers, see Monmouth class cruiser. Canberra passing under the Sydney Harbour Bridge in 1930 Class overv …
3J, K and N class destroyer — HMS Kashmir Class overview Operators …
4Battle class destroyer — The Battle class were a class of destroyers of the British Royal Navy (RN) and Royal Australian Navy (RAN). Built in three groups, the first group were ordered under the 1942 naval estimates. A modified second and third group, together with two… …
5Root datum — In mathematics, the root datum (donnée radicielle in French) of a connected split reductive algebraic group over a field is a generalization of a root system that determines the group up to isomorphism. They were introduced by M. Demazure in SGA… …
6X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… …
7Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… …
8Total order — In set theory, a total order, linear order, simple order, or (non strict) ordering is a binary relation (here denoted by infix ≤) on some set X. The relation is transitive, antisymmetric, and total. A set paired with a total order is called a… …
9Steiner system — In combinatorial mathematics, a Steiner system (named after Jakob Steiner) is a type of block design.A Steiner system with parameters l , m , n , written S( l , m , n ), is an n element set S together with a set of m element subsets of S (called… …
10Mathieu group — Group theory Group theory …
