In geometry, a point group is a mathematical group of symmetry operations (isometries in a Euclidean space) that have a fixed point in common. The coordinate...

In crystallography, a crystallographic point group is a three dimensional point group whose symmetry operations are compatible with a three dimensional...

spectroscopy. Spectroscopic notation is based on symmetry considerations. The point group symmetry of a molecule is defined by the presence or absence of 5 types...

geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a...

In abstract algebra, group theory studies the algebraic structures known as groups. The concept of a group is central to abstract algebra: other well-known...

In geometry, a polar point group is a point group in which there is more than one point that every symmetry operation leaves unmoved. The unmoved points...

Point Break were a British pop group, formed and managed by Danielle Barnett and signed to WEA, who found brief success between 1999 and 2000. Brett Adams...

under a point reflection is said to possess point symmetry (also called inversion symmetry or central symmetry). A point group including a point reflection...

The Elk Point Group is a stratigraphic unit of Early to Middle Devonian age in the Western Canada and Williston sedimentary basins. It underlies a large...

group (the images of a given point under all group elements) forms a discrete set. All finite symmetry groups are discrete. Discrete symmetry groups come...

Schoenflies, is a notation primarily used to specify point groups in three dimensions. Because a point group alone is completely adequate to describe the symmetry...

In mathematics, a topological group G is called a discrete group if there is no limit point in it (i.e., for each element in G, there is a neighborhood...

point group. This ranges from 1 in the case of space group P1 to 192 for a space group like Fm3m, the NaCl structure. The elements of the space group...

A wallpaper group (or plane symmetry group or plane crystallographic group) is a mathematical classification of a two-dimensional repetitive pattern, based...

geometry, a point group in four dimensions is an isometry group in four dimensions that leaves the origin fixed, or correspondingly, an isometry group of a 3-sphere...

frieze groups with vertical line reflection or 180° rotation (groups 2, 5, 6, and 7), by a shift parameter locating the reflection axis or point of rotation...

independent candidates in by-elections under the banner of the Nine Point Group. Following the electoral success of Tom Driberg with this support in...

two-dimensional point group or rosette group is a group of geometric symmetries (isometries) that keep at least one point fixed in a plane. Every such group is a...

the preimage of a point group (hence denoted 2G, for the point group G), or is an index 2 subgroup of the preimage of a point group which maps (isomorphically)...

isometries along the axis a discrete point group, frieze group, or wallpaper group in a plane, combined with any symmetry group in the perpendicular direction...

The Long Point Group is a geologic group in Newfoundland and Labrador. It preserves fossils dating back to the Ediacaran period. Earth sciences portal...

The Six Point Group was a British feminist campaign group founded by Lady Rhondda in 1921 to press for changes in the law of the United Kingdom in six...

See symmetry group. A discrete isometry group is an isometry group such that for every point of the space the set of images of the point under the isometries...

notation is used to represent the symmetry elements in point groups, plane groups and space groups. It is named after the German crystallographer Carl Hermann...

crystallographic point group. A crystal system is a set of point groups in which the point groups themselves and their corresponding space groups are assigned...

trading day. In 2013, the company acquired the German retailer Runners Point Group. After not meeting corporate expectations, Foot Locker planned to close...

set of point groups (a group of geometric symmetries with at least one fixed point). A lattice system is a set of Bravais lattices. Space groups are classified...

describe point groups. This notation is used in spectroscopy and is used here to specify a molecular point group. There are two point groups for diatomic...

The Connecting Point Group is a Late Neoproterozoic geological formation cropping out on the Avalon Peninsula of Newfoundland, dominated by deep marine...

gluteus group (gluteus maximus, gluteus medius, and gluteus minimus). Often there is a heat differential in the local area of a trigger point.[citation...