basis of group
111Wallpaper group — A wallpaper group (or plane symmetry group or plane crystallographic group) is a mathematical classification of a two dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and… …
112Space group — In mathematics and geometry, a space group is a symmetry group, usually for three dimensions, that divides space into discrete repeatable domains. In three dimensions, there are 219 unique types, or counted as 230 if chiral copies are considered… …
113Crown group — For the caterer, see Crown Group. Two distinct crown groups (in red) are illustrated, connected by an ancestor (black circle). The two groups form a larger crown group (lilac). A crown group is a group consisting of living representatives, their… …
114Caloris Group — The Caloris group is a set of geologic units on Mercury. McCauley and others[1] have proposed the name “Caloris Group” to include the mappable units created by the impact that formed the Caloris Basin and have formally named four formations… …
115blood group — Med. any of various classes into which human blood can be divided according to immunological compatibility, based on the presence or absence of specific antigens on red blood cells. Also called blood type. Cf. ABO system, Rh factor. [1915 20] * * …
116top-paid group — USA For purposes of determining a highly compensated employee during any given year, the top 20% of employees ranked on the basis of compensation received during that year. The employer must make an election for the top paid group rule to apply.… …
117Moody International Group — Industry Technical Inspection, Technical Training, Technical Staffing Services, Management Systems Certification Founded …
118Carrier battle group — A carrier battle group (CVBG) consists of an aircraft carrier (CV) and its escorts.HistoryThe CVBG was first used in World War II, primarily in conflicts between the United States and Japan in the Pacific. CVBGs at the time consisted of a far… …
119Quaternion group — In group theory, the quaternion group is a non abelian group of order 8. It is often denoted by Q and written in multiplicative form, with the following 8 elements : Q = {1, −1, i , − i , j , − j , k , − k }Here 1 is the identity element, (−1)2 …
120Focus group — Marketing Key concepts Product marketing · Pricing …
