theory of diffusion processes

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• Diffusion process — For the marketing term, see Diffusion of innovations. In probability theory, a branch of mathematics, a diffusion process is a solution to a stochastic differential equation. It is a continuous time Markov process with continuous sample paths. A… …   Wikipedia

• Diffusion superficielle — Diffusion de surface Figure 1. Modèle de diffusion d un adatome sur un réseau de surface carré. La fréquence de vibration de l adatome est plus grande que la fréquence des sauts aux sites voisins. Ainsi, le modèle montre deux types de sauts  …   Wikipédia en Français

• Diffusion (business) — Diffusion is the process by which a new idea or new product is accepted by the market. The rate of diffusion is the speed that the new idea spreads from one consumer to the next. Adoption is similar to diffusion except that it deals with the… …   Wikipedia

• Diffusion of innovations — The diffusion of innovations according to Rogers. With successive groups of consumers adopting the new technology (shown in blue), its market share (yellow) will eventually reach the saturation level. In mathematics the S curve is known as the… …   Wikipedia

• Theory of multiple intelligences — Human intelligence Abilities and Traits Abstract thought Communication · Creativity Emotional Intelligence Kn …   Wikipedia

• Diffusion equation — The diffusion equation is a partial differential equation which describes density fluctuations in a material undergoing diffusion. It is also used to describe processes exhibiting diffusive like behaviour, for instance the diffusion of alleles in …   Wikipedia

• Diffusion-limited aggregation — A DLA cluster grown from a copper sulfate solution in an electrodeposition cell Diffusion limited aggregation (DLA) is the process whereby particles undergoing a random walk due to Brownian motion cluster together to form aggregates of such… …   Wikipedia

• Diffusion de surface — Figure 1. Modèle de diffusion d un adatome sur un réseau de surface carré. La fréquence de vibration de l adatome est plus grande que la fréquence des sauts aux sites voisins. Ainsi, le modèle montre deux types de sauts : les sauts aux sites …   Wikipédia en Français

• probability theory — Math., Statistics. the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Cf. probability (def. 4). [1830 40] * * * Branch of mathematics that deals with analysis of random events.… …   Universalium

• Reaction–diffusion system — Reaction–diffusion systems are mathematical models which explain how the concentration of one or more substances distributed in space changes under the influence of two processes: local chemical reactions in which the substances are transformed… …   Wikipedia

• Ruin theory — Ruin theory, sometimes referred to as collective risk theory, is a branch of actuarial science that studies an insurer s vulnerability to insolvency based on mathematical modeling of the insurer s surplus.The theory permits the derivation and… …   Wikipedia