planar pair
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Planar ternary ring — In mathematics, a planar ternary ring (PTR) or ternary field is an algebraic structure (R,T), where R is a non empty set, and T colon R^3 o R is a mapping satisfying certain axioms. A planar ternary ring is not a ring in the traditional sense.… … Wikipedia
Closest pair of points problem — Closest pair of points shown in red The closest pair of points problem or closest pair problem is a problem of computational geometry: given n points in metric space, find a pair of points with the smallest distance between them. Its two… … Wikipedia
Square planar molecular geometry — The square planar molecular geometry in chemistry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds. As the name suggests, molecules of this geometry have their atoms positioned at the… … Wikipedia
Hoogsteen base pair — A Hoogsteen base pair is a minor variation of base pairing in nucleic acids such as the A•T pair. In this manner, two nucleobases on each strand can be held together by hydrogen bonds in the major groove. A Hoogsteen base pair applies the N7… … Wikipedia
Kinematic pair — A kinematic pair is the general name for two rigid bodies that can move with respect to each other via a mechanical constraint ( joint ) between the two bodies. In kinematics, one classifies the kinematic pairs in two groups: * Lower pairs: the… … Wikipedia
плоскостная пара — planar contact pair, sandwich pair Трехподвижная пара, допускающая плоское движение одного твердого тела относительно другого. Шифр IFToMM: 1.2.17 Раздел: СТРУКТУРА МЕХАНИЗМОВ … Теория механизмов и машин
Edge coloring — A 3 edge coloring of the Desargues graph. In graph theory, an edge coloring of a graph is an assignment of “colors” to the edges of the graph so that no two adjacent edges have the same color. For example, the figure to the right shows an edge… … Wikipedia
Glossary of graph theory — Graph theory is a growing area in mathematical research, and has a large specialized vocabulary. Some authors use the same word with different meanings. Some authors use different words to mean the same thing. This page attempts to keep up with… … Wikipedia
chemical 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 … Universalium
combinatorics — /keuhm buy neuh tawr iks, tor , kom beuh /, n. (used with singular v.) See combinatorial analysis. * * * Branch of mathematics concerned with the selection, arrangement, and combination of objects chosen from a finite set. The number of possible… … Universalium
Graph coloring — A proper vertex coloring of the Petersen graph with 3 colors, the minimum number possible. In graph theory, graph coloring is a special case of graph labeling; it is an assignment of labels traditionally called colors to elements of a graph… … Wikipedia
