field curvature of higher order

См. также в других словарях:

• Curvature invariant (general relativity) — Curvature invariants in general relativity are a set of scalars called curvature invariants that arise in general relativity. They are formed from the Riemann, Weyl and Ricci tensors which represent curvature and possibly operations on them such… …   Wikipedia

• Curvature — In mathematics, curvature refers to any of a number of loosely related concepts in different areas of geometry. Intuitively, curvature is the amount by which a geometric object deviates from being flat, or straight in the case of a line, but this …   Wikipedia

• Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… …   Wikipedia

• Field artillery — [ Union Army gun squad at drill, c. 1860.] Field artillery is a category of mobile artillery used to support armies in the field. These weapons are specialized for mobility and tactical efficiency, and not for long range nor sheer destructive… …   Wikipedia

• Field artillery team — In the land based field artillery, the field artillery team is organized to direct and control indirect fire artillery fire on the battlefidirect artillery fire, three distinct components have evolved in this organization, the forward observer… …   Wikipedia

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• Classical unified field theories — Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified… …   Wikipedia

• Track and field — For the video game, see Track Field (video game). Track and field The track and field stadium is at the heart of the sport Nickname(s) Track Characteristics Team mem …   Wikipedia

• Relationship between string theory and quantum field theory — Many first principles in quantum field theory are explained, or get further insight, in string theory: * Emission and absorption: one of the most basic building blocks of quantum field theory, is the notion that particles (such as electrons) can… …   Wikipedia

• Zero-point field — In quantum field theory, the zero point field is the lowest energy state of a field, i.e. its ground state, which is non zero. [cite book | last = Gribbin | first = John | title = Q is for Quantum An Encyclopedia of Particle Physics | publisher …   Wikipedia

• Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… …   Wikipedia