point harmonic
11Harmonic map — A (smooth) map φ: M → N between Riemannian manifolds M and N is called harmonic if it is a critical point of the energy functional E (φ).This functional E will be defined precisely below mdash;one way of understanding it is to imagine that M is… …
12Harmonic measure — In mathematics, harmonic measure is a concept that arises in the theory of harmonic functions, where it can be used to estimate the modulus of an analytic function inside a domain D given bounds on the modulus on the boundary of the domain. In a… …
13harmonic function — ▪ mathematics mathematical function of two variables having the property that its value at any point is equal to the average of its values along any circle around that point, provided the function is defined within the circle. An infinite… …
14Harmonic series (mathematics) — In mathematics, the harmonic series is the divergent infinite series: Its name derives from the concept of overtones, or harmonics in music: the wavelengths of the overtones of a vibrating string are 1/2, 1/3, 1/4, etc., of the string s… …
15Harmonic conjugate — For geometric conjugate points, see Projective harmonic conjugates. In mathematics, a function defined on some open domain is said to have as a conjugate a function if and only if they are respectively real and imaginary part of a holomorphic… …
16Harmonic drive — A harmonic drive is an input/output gearing mechanism. It is typically used for gearing reduction, but may also be used to increase rotational speed or for differential gearing. Very high gear reduction ratios are possible in a small volume… …
17Harmonic Convergence — The Harmonic Convergence is the name given to a world wide esoteric religious event which took place on August 16 and August 17, 1987. The event was centered on a number of sacred places throughout the world from Stonehenge to the Golden Gate… …
18harmonic construction — ▪ mathematics in projective geometry, determination of a pair of points C and D that divides a line segment AB harmonically (see Figure >), that is, internally and externally in the same ratio, the internal ratio CA/CB being equal to the… …
19harmonic — I. adjective Date: 1570 1. musical 2. of or relating to musical harmony or a harmonic 3. pleasing to the ear ; harmonious 4. of an integrated nature ; congruous • harmonically adverb II …
20harmonic motion — noun a periodic motion in which the displacement is either symmetrical about a point or is the sum of such motions • Hypernyms: ↑periodic motion, ↑periodic movement • Hyponyms: ↑simple harmonic motion …
